Re: [R] Ternary plot and filled contour
Nice job Nicholas!thanks for the e-mail. Regards, Francesco --- Francesco Nutini CNR-IREA Institute for Electromagnetic Sensing of the Environment Via Bassini 15, 20133 Milano (Italy) Tel: +39-02 23699 297 www.irea.cnr.it nutin...@irea.cnr.it Skype: ui...@hotmail.it Faculty of Agriculture of the University of Milan (UniMI) Di.Pro.Ve. - Department of Plant Production Univ. mail: francesco.nut...@unimi.it--- Date: Thu, 19 Dec 2013 06:45:04 -0800 From: nicholasehamil...@gmail.com To: r-help-arch...@googlegroups.com CC: r-help@r-project.org; nutini.france...@gmail.com Subject: Re: [R] Ternary plot and filled contour Dear Francesco, I wanted to mention that I have just published on CRAN, a package for R, for the plotting of ternary diagrams. It is based off ggplot2, which is highly regarded, and, my website can be viewed at www.ggtern.com, including many examples, specifically including a case study at the following address: http://ggtern.com/case-study-zirconia-alumina-silica/ Hope you find it of value. Best Regards, Nicholas Hamilton School of Materials Science and Engineering Univesity of New South Wales Sydney Australia -- www.ggtern.com On Monday, June 4, 2012 10:52:10 PM UTC+10, Francesco Nutini wrote: Dear R-Users, I'd like to have some tips for a ternaryplot (vcd). I have this dataframe: a- c (0.1, 0.5, 0.5, 0.6, 0.2,0, 0, 0.00417, 0.45) b- c (0.75,0.5,0,0.1,0.2,0.951612903,0.918103448,0.7875,0.45)c- c (0.15,0,0.5,0.3,0.6,0.048387097,0.081896552,0.20833,0.1) d- c (500,2324.90,2551.44,1244.50, 551.22,-644.20,-377.17,-100, 2493.04) df- data.frame (a, b, c, d) and I'm building a ternary plot: ternaryplot(df[,1:3], df$d) How can I map the continue variable d, obtaining a result similar to this one? [see the link] http://www.pmel.noaa.gov/maillists/tmap/ferret_users/fu_2007/jpgCqrZqdDwYG.jpg Many thanks! [[alternative HTML version deleted]] __ r-h...@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] vectors comparison
Dear Simon R-Users.I have applied your solution also for larger buffer window,and it's working well. But I'm getting the problem harder.I have two vectors: x- c(0,0,0,0,1,0,0,0,0,1,0,0,0) y- c(0,-10,0,-10,0,0,0,0,-10,0,0,0,0) And I want to know where the value -1 in x have at least 2 values -10 in y.Considering a buffer of three position before x. i.e. in this example only the figure 1 in position x[5] satisfies the criteria,because y has the values -10 in position y[2] and y[4]. I tried in this way, but I don't know how to sayat least 2 on three conditions on y must be true: which(x==1 (c(0,y[1:12])==-10 |c(0,0, y[1:11])==-10| c(0,0,0, y[1:10])==-10)) thank in advance for you help, Francesco Date: Wed, 17 Oct 2012 10:36:46 +1100 Subject: Re: [R] vectors comparison From: sleepingw...@gmail.com To: nutini.france...@gmail.com CC: r-help@r-project.org Your question does not seem to make sense - there is no value of -500 in Y (did you mean -10?). Anyway, I think this might work: which(y==-10 (x==1 | c(0, x[-length(x)]) == 1 | c(x[-1], 0) == 1)) ... though one would think there is a more elegant way On Wed, Oct 17, 2012 at 10:07 AM, Francesco Nutini nutini.france...@gmail.com wrote: Dear R-Users, I'd like to have your help on this problem: I have two vectors:x- c(0,1,0,0,0,0,0,0,0,0,0,1,0)y- c(0,0,-10,0,0,-10,0,-10,0,0,0,0,0) And I want to know where the value -500 in y have a correspondence value 1 in x.Considering a buffer of one position before and after in x.i.e. in this example only the -10 in position y[3] satisfies the criteria, because x has in position x[2]the figure 1. Thank in advance for you help,Francesco [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] vectors comparison
Dear Simon Knapp, sorry the -500 is a typo.Nice job, your code works perfectly!Thanks a lot! Date: Wed, 17 Oct 2012 10:36:46 +1100 Subject: Re: [R] vectors comparison From: sleepingw...@gmail.com To: nutini.france...@gmail.com CC: r-help@r-project.org Your question does not seem to make sense - there is no value of -500 in Y (did you mean -10?). Anyway, I think this might work: which(y==-10 (x==1 | c(0, x[-length(x)]) == 1 | c(x[-1], 0) == 1)) ... though one would think there is a more elegant way On Wed, Oct 17, 2012 at 10:07 AM, Francesco Nutini nutini.france...@gmail.com wrote: Dear R-Users, I'd like to have your help on this problem: I have two vectors:x- c(0,1,0,0,0,0,0,0,0,0,0,1,0)y- c(0,0,-10,0,0,-10,0,-10,0,0,0,0,0) And I want to know where the value -500 in y have a correspondence value 1 in x.Considering a buffer of one position before and after in x.i.e. in this example only the -10 in position y[3] satisfies the criteria, because x has in position x[2]the figure 1. Thank in advance for you help,Francesco [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] vectors comparison
Dear R-Users, I'd like to have your help on this problem: I have two vectors:x- c(0,1,0,0,0,0,0,0,0,0,0,1,0)y- c(0,0,-10,0,0,-10,0,-10,0,0,0,0,0) And I want to know where the value -500 in y have a correspondence value 1 in x.Considering a buffer of one position before and after in x.i.e. in this example only the -10 in position y[3] satisfies the criteria, because x has in position x[2]the figure 1. Thank in advance for you help,Francesco [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] par and complex graph
Oh thank you Carlos!I wasted a lot of time formatting my xyplot by powerpoint.Did you used a similar tips for ternaryplot (vcd)? Many thanks.Regards,Francesco Date: Wed, 6 Jun 2012 17:08:39 +0200 Subject: Re: [R] [r] par and complex graph From: c...@qualityexcellence.es To: nutini.france...@gmail.com Hi, Sorry, layout is a parameter you should use when plotting several charts of the same nature. If you want to combien different lattice charts you should use print() which is a function that has methods to consider trellis objects. Check help details for print.tellis o consider this example: p11 - histogram( ~ height | voice.part, data = singer, xlab=Height)p12 - densityplot( ~ height | voice.part, data = singer, xlab = Height) p2 - histogram( ~ height, data = singer, xlab = Height) ## simple positioning by splitprint(p11, split=c(1,1,1,2), more=TRUE)print(p2, split=c(1,2,1,2)) ## Combining split and position:print(p11, position = c(0,0,.75,.75), split=c(1,1,1,2), more=TRUE) print(p12, position = c(0,0,.75,.75), split=c(1,2,1,2), more=TRUE)print(p2, position = c(.5,.75,1,1), more=FALSE) Regards,Carlos Ortegawww.qualityexcellence.es 2012/6/6 Carlos Ortega c...@qualityexcellence.es Hi Francesco, The parameter in the lattice package that you can use to arrange several plots in the same page is layout: xyplot(Sepal.Length + Sepal.Width ~ Petal.Length + Petal.Width | Species, data = iris, scales = free, layout = c(2, 2), auto.key = list(x = .6, y = .7, corner = c(0, 0))) Regards, Carlos Ortegawww.qualityexcellence.es 2012/6/6 Francesco Nutini nutini.france...@gmail.com Thank you Brian! So, that's why sometimes I can't use the par() Now I'm using the ternaryplot in [vcd]. Then, I have to read the vcd help to looking for a function similar to par(). Many thanks. Francesco Date: Tue, 5 Jun 2012 19:01:25 +0100 From: rip...@stats.ox.ac.uk To: nutini.france...@gmail.com CC: r-help@r-project.org Subject: Re: [R] [r] par and complex graph On 05/06/2012 11:17, Francesco Nutini wrote: Dear R-Users, I'd like to have some tips about printing graph. I use the command par to print more graphs in one window:par(mfrow=c(6,1)); par(oma=c(2.5, 2.5, 2.5, 2.5)); par(mar=c(0.5,4, 0.5, 0.5)) But this command doesn't run with complex graphic command (i.e. xyplot, ternaryplot).How can I print more than one graph per page, when I work with this elaborated graph?Many thanks!Francesco xyplot does lattice (hence grid) plots: you need to read ?print.trellis to find out how to lay those out. par() applies only to base graphics. As for ternaryplot: it depends which package you got it from (and there is more than one on CRAN). [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. That does mean you, too. -- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. -- Saludos, Carlos Ortega www.qualityexcellence.es -- Saludos, Carlos Ortega www.qualityexcellence.es [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] par and complex graph
Thank you Brian! So, that's why sometimes I can't use the par() Now I'm using the ternaryplot in [vcd]. Then, I have to read the vcd help to looking for a function similar to par(). Many thanks. Francesco Date: Tue, 5 Jun 2012 19:01:25 +0100 From: rip...@stats.ox.ac.uk To: nutini.france...@gmail.com CC: r-help@r-project.org Subject: Re: [R] [r] par and complex graph On 05/06/2012 11:17, Francesco Nutini wrote: Dear R-Users, I'd like to have some tips about printing graph. I use the command par to print more graphs in one window:par(mfrow=c(6,1)); par(oma=c(2.5, 2.5, 2.5, 2.5)); par(mar=c(0.5,4, 0.5, 0.5)) But this command doesn't run with complex graphic command (i.e. xyplot, ternaryplot).How can I print more than one graph per page, when I work with this elaborated graph?Many thanks!Francesco xyplot does lattice (hence grid) plots: you need to read ?print.trellis to find out how to lay those out. par() applies only to base graphics. As for ternaryplot: it depends which package you got it from (and there is more than one on CRAN). [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. That does mean you, too. -- Brian D. Ripley, rip...@stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UKFax: +44 1865 272595 [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] [r] par and complex graph
Dear R-Users, I'd like to have some tips about printing graph. I use the command par to print more graphs in one window:par(mfrow=c(6,1)); par(oma=c(2.5, 2.5, 2.5, 2.5)); par(mar=c(0.5,4, 0.5, 0.5)) But this command doesn't run with complex graphic command (i.e. xyplot, ternaryplot).How can I print more than one graph per page, when I work with this elaborated graph?Many thanks!Francesco [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] Ternary plot and filled contour
Dear R-Users, I'd like to have some tips for a ternaryplot (vcd). I have this dataframe: a- c (0.1, 0.5, 0.5, 0.6, 0.2, 0, 0, 0.00417, 0.45) b- c (0.75,0.5,0,0.1,0.2,0.951612903,0.918103448,0.7875,0.45)c- c (0.15,0,0.5,0.3,0.6,0.048387097,0.081896552,0.20833,0.1) d- c (500,2324.90,2551.44,1244.50, 551.22,-644.20,-377.17,-100, 2493.04) df- data.frame (a, b, c, d) and I'm building a ternary plot: ternaryplot(df[,1:3], df$d) How can I map the continue variable d, obtaining a result similar to this one? [see the link] http://www.pmel.noaa.gov/maillists/tmap/ferret_users/fu_2007/jpgCqrZqdDwYG.jpg Many thanks! [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] [r] histogram with mean for every break
Dear R-users, I need to produce a histogram where for every breaks there are the mean of the data. I tried tu use the function hist(x, break=20 ... ) but this return the numerosity for every breaks, not the mean. Any hint? Thanks in advance, francesco --- Francesco Nutini CNR-IREA Ist. per il Rilevamento Elettromagnetico dell'Ambiente Via Bassini 15, 20133 Milano (Italy) Tel: +39-02 23699 297 http://www.irea.cnr.it nutin...@irea.cnr.it Skype: ui...@hotmail.it Univ. mail: francesco.nut...@unimi.it --- [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] histogram with mean for every break
fantastic Michael! The code V = sort(unique(ave(x,cut(x,HistOut$breaks works good. I got what I need! that is 20 mean values. I calculate the first value in excel, it's the same (79.61429). HistOut= hist(data$ DMP_m3.jaso..10, freq=F, breaks =20, xlim=c(0,3000),col=grey26, main=DMP_niger, plot=T) V = sort(unique(ave(data$ DMP_m3.jaso..10,cut(data$ DMP_m3.jaso..10,HistOut$breaks write(V, , sep = ) 79.61429 149.9792 257.4969 347.8211 449.2063 552.9694 647.5132 749.23 859.0167 945.4912 1046.917 1147.703 1249.375 1359.794 1447.518 1553.838 1649.231 1735.217 1850.617 1957.85 2031.329 2156.8 2247.55 2340.6 2822.1 Thank you very much. francesco From: michael.weyla...@gmail.com Date: Tue, 23 Aug 2011 11:27:13 -0400 Subject: Re: [R] [r] histogram with mean for every break To: nutini.france...@gmail.com CC: r-help@r-project.org I do not believe your code (minimal as it is) would work: the correct argument is breaks. More generally, do you really mean to say that hist(x, breaks = 20) immediately returns the bin counts? It doesn't on my machine and if you knew how to get the counts, you should be able to get the midpoints as well. Try this x = rnorm(5000) HistOut = hist(x, breaks = 20) HistOut$mids # will give midpoints for each bin of this histogram If you need proper means, rather than midpoints: # I *think* this works -- no guarantees: it assigns x to bins based on the histogram breaks, averages those by bin, and then we pull out just the unique values and sort them V = sort(unique(ave(x,cut(x,HistOut$breaks It does seem to be a somewhat strange task to use histogram breaks to get means though: if I were you, I'd spend a minute or two contemplating if this really makes the most sense, rather than just doing the breaks in some way yourself directly. There may well be a more elegant way but I think this gets the job done. Hope it helps, Michael On Tue, Aug 23, 2011 at 9:46 AM, Francesco Nutini nutini.france...@gmail.com wrote: Dear R-users, I need to produce a histogram where for every breaks there are the mean of the data. I tried tu use the function hist(x, break=20 ... ) but this return the numerosity for every breaks, not the mean. Any hint? Thanks in advance, francesco --- Francesco Nutini CNR-IREA Ist. per il Rilevamento Elettromagnetico dell'Ambiente Via Bassini 15, 20133 Milano (Italy) Tel: +39-02 23699 297 http://www.irea.cnr.it nutin...@irea.cnr.it Skype: ui...@hotmail.it Univ. mail: francesco.nut...@unimi.it --- [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] regression coefficient for different factors
In fact temp.data$ is not necessary, but the command still not run.
Thanks for your response, I'm also tring other point of view (suggested by
r-helpers).
For example ?ddply and ?lmList.
If you are interested I will keep you updated.
Francesco
Date: Fri, 20 May 2011 13:04:41 -0400
Subject: Re: [R] [r] regression coefficient for different factors
From: dimitri.liakhovit...@gmail.com
To: nutini.france...@gmail.com
CC: rb...@atsu.edu; r-help@r-project.org
I think you don't need to write temp.data$a ~ temp.data$b just a ~ b
On Fri, May 20, 2011 at 11:45 AM, Francesco Nutini
nutini.france...@gmail.com wrote:
Please forgive me for all these questions Dimitri...
I'm running these input:
mylist-NULL #in order to hold my input
for(i in levels(mydataset$c)) { temp.data-mydataset [mydataset$c %in% i]
mylist[[i]]- lm(temp.data$a ~ temp.data$b , data=temp.data) }
That's the erros returns
Error in `[.data.frame`(mydataset, niger$site %in% i) :
undefined columns selected
Date: Fri, 20 May 2011 10:01:39 -0400
Subject: Re: [R] [r] regression coefficient for different factors
From: dimitri.liakhovit...@gmail.com
To: nutini.france...@gmail.com
CC: rb...@atsu.edu; r-help@r-project.org
First you have to create something (e.g., a list) that holds your output:
mylist-NULL
Then you loop through the levels of c and run a regression of a onto b
(no need to include c anymore because c will have zero variance within
each level of c):
for(i in levels(c)){
temp.data-mydataset[mydataset$c %in% i]
mylist[[i]]-lm(a ~ b, data=temp.data)
}
Once you are done - you can write another loop (this time across all
elements of mylist - that will have as many elements as there are
levels in c) and extract the coefficients.
Dimitri
On Fri, May 20, 2011 at 9:57 AM, Francesco Nutini
nutini.france...@gmail.com wrote:
Yes Dimitri that's what I mean!
Something like this?
for(i in levels(c)) { lm(a ~ b * c , data=mydataset)}
And what about to see the output?
Thanks!
Date: Fri, 20 May 2011 09:46:08 -0400
Subject: Re: [R] [r] regression coefficient for different factors
From: dimitri.liakhovit...@gmail.com
To: nutini.france...@gmail.com
CC: rb...@atsu.edu; r-help@r-project.org
Francesco, do you just want a separate regression for each level of
your factor c?
You could write a loop - looping through levels of c:
for(i in levels(c)){
select your data here and write a regression formula
}
On Fri, May 20, 2011 at 9:39 AM, Francesco Nutini
nutini.france...@gmail.com wrote:
Thanks for your reply,
?summary produce a multiple r2.
My dataset il similar to this one:
a b c
1 -1.4805676 0.9729927 x
2 1.5771695 0.2172974 x
3 -0.9567445 0.5205087 x
4 -0.9200052 0.8279428 z
5 -1.9976421 0.9641110 z
6 -0.2722960 0.6318801 y
So, I would like to know the r2 for a~b for every factors levels.
Off course I can made the regression separately for every factors,
but
my dataset have 68 factors...
--
Francesco Nutini
PhD student
CNR-IREA (Institute for Electromagnetic Sensing of the Environment)
Milano, Italy
From: rb...@atsu.edu
To: nutini.france...@gmail.com; r-help@r-project.org
Subject: Re: [R] [r] regression coefficient for different factors
Date: Fri, 20 May 2011 08:07:59 -0500
?summary
produces r^2 in 2nd to last line, as in,
set.seed(12); a=rnorm(100); b = runif(100); c = factor(rep(c('No',
'Yes'),50)); df = data.frame(a,b,c)
head(df)
a b c
1 -1.4805676 0.9729927 No
2 1.5771695 0.2172974 Yes
3 -0.9567445 0.5205087 No
4 -0.9200052 0.8279428 Yes
5 -1.9976421 0.9641110 No
6 -0.2722960 0.6318801 Yes
mod = lm(a ~ b*c)
summary(mod)
Call:
lm(formula = a ~ b * c)
Residuals:
Min 1Q Median 3Q Max
-1.8196 -0.4754 -0.0246 0.5585 2.0941
Coefficients:
Estimate Std. Error t value Pr(|t|)
(Intercept) 0.2293 0.2314 0.9910.324
b-0.4226 0.3885 -1.0880.280
cYes 0.1578 0.3202 0.4930.623
b:cYes -0.5878 0.5621 -1.0460.298
Residual standard error: 0.8455 on 96 degrees of freedom
Multiple R-squared: 0.07385, Adjusted R-squared: 0.04491
F-statistic: 2.552 on 3 and 96 DF, p-value: 0.0601
--
Robert W. Baer, Ph.D.
Professor of Physiology
Kirksville College of Osteopathic Medicine
A. T. Still University of Health Sciences
800 W. Jefferson St.
Kirksville, MO 63501
660-626-2322
FAX 660-626-2965
--
From: Francesco Nutini nutini.france...@gmail.com
Sent: Friday, May 20, 2011 4:17
[R] [r] regression coefficient for different factors
Dear R-helpers, In my dataset I have two continuous variable (A and B) and one factor. I'm investigating the regression between the two variables usign the command lm(A ~ B, ...) but now I want to know the regression coefficient (r2) of A vs. B for every factors. I know that I can obtain this information with excel, but the factor have 68 levels...maybe [r] have a useful command. Thanks, Francesco Nutini [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] regression coefficient for different factors
Thanks for your reply,
?summary produce a multiple r2.
My dataset il similar to this one:
a b c
1 -1.4805676 0.9729927 x
2 1.5771695 0.2172974 x
3 -0.9567445 0.5205087 x
4 -0.9200052 0.8279428 z
5 -1.9976421 0.9641110 z
6 -0.2722960 0.6318801 y
So, I would like to know the r2 for a~b for every factors levels.
Off course I can made the regression separately for every factors, but my
dataset have 68 factors...
--
Francesco Nutini
PhD student
CNR-IREA (Institute for Electromagnetic Sensing of the Environment)
Milano, Italy
From: rb...@atsu.edu
To: nutini.france...@gmail.com; r-help@r-project.org
Subject: Re: [R] [r] regression coefficient for different factors
Date: Fri, 20 May 2011 08:07:59 -0500
?summary
produces r^2 in 2nd to last line, as in,
set.seed(12); a=rnorm(100); b = runif(100); c = factor(rep(c('No',
'Yes'),50)); df = data.frame(a,b,c)
head(df)
a b c
1 -1.4805676 0.9729927 No
2 1.5771695 0.2172974 Yes
3 -0.9567445 0.5205087 No
4 -0.9200052 0.8279428 Yes
5 -1.9976421 0.9641110 No
6 -0.2722960 0.6318801 Yes
mod = lm(a ~ b*c)
summary(mod)
Call:
lm(formula = a ~ b * c)
Residuals:
Min 1Q Median 3Q Max
-1.8196 -0.4754 -0.0246 0.5585 2.0941
Coefficients:
Estimate Std. Error t value Pr(|t|)
(Intercept) 0.2293 0.2314 0.9910.324
b-0.4226 0.3885 -1.0880.280
cYes 0.1578 0.3202 0.4930.623
b:cYes -0.5878 0.5621 -1.0460.298
Residual standard error: 0.8455 on 96 degrees of freedom
Multiple R-squared: 0.07385, Adjusted R-squared: 0.04491
F-statistic: 2.552 on 3 and 96 DF, p-value: 0.0601
--
Robert W. Baer, Ph.D.
Professor of Physiology
Kirksville College of Osteopathic Medicine
A. T. Still University of Health Sciences
800 W. Jefferson St.
Kirksville, MO 63501
660-626-2322
FAX 660-626-2965
--
From: Francesco Nutini nutini.france...@gmail.com
Sent: Friday, May 20, 2011 4:17 AM
To: [R] help r-help@r-project.org
Subject: [R] [r] regression coefficient for different factors
Dear R-helpers,
In my dataset I have two continuous variable (A and B) and one factor.
I'm investigating the regression between the two variables usign the
command
lm(A ~ B, ...)
but now I want to know the regression coefficient (r2) of A vs. B for
every factors.
I know that I can obtain this information with excel, but the factor have
68 levels...maybe [r] have a useful command.
Thanks,
Francesco Nutini
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] regression coefficient for different factors
Yes Dimitri that's what I mean!
Something like this?
for(i in levels(c)) { lm(a ~ b * c , data=mydataset)}
And what about to see the output?
Thanks!
Date: Fri, 20 May 2011 09:46:08 -0400
Subject: Re: [R] [r] regression coefficient for different factors
From: dimitri.liakhovit...@gmail.com
To: nutini.france...@gmail.com
CC: rb...@atsu.edu; r-help@r-project.org
Francesco, do you just want a separate regression for each level of
your factor c?
You could write a loop - looping through levels of c:
for(i in levels(c)){
select your data here and write a regression formula
}
On Fri, May 20, 2011 at 9:39 AM, Francesco Nutini
nutini.france...@gmail.com wrote:
Thanks for your reply,
?summary produce a multiple r2.
My dataset il similar to this one:
a b c
1 -1.4805676 0.9729927 x
2 1.5771695 0.2172974 x
3 -0.9567445 0.5205087 x
4 -0.9200052 0.8279428 z
5 -1.9976421 0.9641110 z
6 -0.2722960 0.6318801 y
So, I would like to know the r2 for a~b for every factors levels.
Off course I can made the regression separately for every factors, but my
dataset have 68 factors...
--
Francesco Nutini
PhD student
CNR-IREA (Institute for Electromagnetic Sensing of the Environment)
Milano, Italy
From: rb...@atsu.edu
To: nutini.france...@gmail.com; r-help@r-project.org
Subject: Re: [R] [r] regression coefficient for different factors
Date: Fri, 20 May 2011 08:07:59 -0500
?summary
produces r^2 in 2nd to last line, as in,
set.seed(12); a=rnorm(100); b = runif(100); c = factor(rep(c('No',
'Yes'),50)); df = data.frame(a,b,c)
head(df)
a b c
1 -1.4805676 0.9729927 No
2 1.5771695 0.2172974 Yes
3 -0.9567445 0.5205087 No
4 -0.9200052 0.8279428 Yes
5 -1.9976421 0.9641110 No
6 -0.2722960 0.6318801 Yes
mod = lm(a ~ b*c)
summary(mod)
Call:
lm(formula = a ~ b * c)
Residuals:
Min 1Q Median 3Q Max
-1.8196 -0.4754 -0.0246 0.5585 2.0941
Coefficients:
Estimate Std. Error t value Pr(|t|)
(Intercept) 0.2293 0.2314 0.9910.324
b-0.4226 0.3885 -1.0880.280
cYes 0.1578 0.3202 0.4930.623
b:cYes -0.5878 0.5621 -1.0460.298
Residual standard error: 0.8455 on 96 degrees of freedom
Multiple R-squared: 0.07385, Adjusted R-squared: 0.04491
F-statistic: 2.552 on 3 and 96 DF, p-value: 0.0601
--
Robert W. Baer, Ph.D.
Professor of Physiology
Kirksville College of Osteopathic Medicine
A. T. Still University of Health Sciences
800 W. Jefferson St.
Kirksville, MO 63501
660-626-2322
FAX 660-626-2965
--
From: Francesco Nutini nutini.france...@gmail.com
Sent: Friday, May 20, 2011 4:17 AM
To: [R] help r-help@r-project.org
Subject: [R] [r] regression coefficient for different factors
Dear R-helpers,
In my dataset I have two continuous variable (A and B) and one factor.
I'm investigating the regression between the two variables usign the
command
lm(A ~ B, ...)
but now I want to know the regression coefficient (r2) of A vs. B for
every factors.
I know that I can obtain this information with excel, but the factor have
68 levels...maybe [r] have a useful command.
Thanks,
Francesco Nutini
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Dimitri Liakhovitski
Ninah Consulting
www.ninah.com
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] regression coefficient for different factors
Please forgive me for all these questions Dimitri...
I'm running these input:
mylist-NULL #in order to hold my input
for(i in levels(mydataset$c)) { temp.data-mydataset [mydataset$c %in% i]
mylist[[i]]- lm(temp.data$a ~ temp.data$b , data=temp.data) }
That's the erros returns
Error in `[.data.frame`(mydataset, niger$site %in% i) :
undefined columns selected
Date: Fri, 20 May 2011 10:01:39 -0400
Subject: Re: [R] [r] regression coefficient for different factors
From: dimitri.liakhovit...@gmail.com
To: nutini.france...@gmail.com
CC: rb...@atsu.edu; r-help@r-project.org
First you have to create something (e.g., a list) that holds your output:
mylist-NULL
Then you loop through the levels of c and run a regression of a onto b
(no need to include c anymore because c will have zero variance within
each level of c):
for(i in levels(c)){
temp.data-mydataset[mydataset$c %in% i]
mylist[[i]]-lm(a ~ b, data=temp.data)
}
Once you are done - you can write another loop (this time across all
elements of mylist - that will have as many elements as there are
levels in c) and extract the coefficients.
Dimitri
On Fri, May 20, 2011 at 9:57 AM, Francesco Nutini
nutini.france...@gmail.com wrote:
Yes Dimitri that's what I mean!
Something like this?
for(i in levels(c)) { lm(a ~ b * c , data=mydataset)}
And what about to see the output?
Thanks!
Date: Fri, 20 May 2011 09:46:08 -0400
Subject: Re: [R] [r] regression coefficient for different factors
From: dimitri.liakhovit...@gmail.com
To: nutini.france...@gmail.com
CC: rb...@atsu.edu; r-help@r-project.org
Francesco, do you just want a separate regression for each level of
your factor c?
You could write a loop - looping through levels of c:
for(i in levels(c)){
select your data here and write a regression formula
}
On Fri, May 20, 2011 at 9:39 AM, Francesco Nutini
nutini.france...@gmail.com wrote:
Thanks for your reply,
?summary produce a multiple r2.
My dataset il similar to this one:
a b c
1 -1.4805676 0.9729927 x
2 1.5771695 0.2172974 x
3 -0.9567445 0.5205087 x
4 -0.9200052 0.8279428 z
5 -1.9976421 0.9641110 z
6 -0.2722960 0.6318801 y
So, I would like to know the r2 for a~b for every factors levels.
Off course I can made the regression separately for every factors, but
my dataset have 68 factors...
--
Francesco Nutini
PhD student
CNR-IREA (Institute for Electromagnetic Sensing of the Environment)
Milano, Italy
From: rb...@atsu.edu
To: nutini.france...@gmail.com; r-help@r-project.org
Subject: Re: [R] [r] regression coefficient for different factors
Date: Fri, 20 May 2011 08:07:59 -0500
?summary
produces r^2 in 2nd to last line, as in,
set.seed(12); a=rnorm(100); b = runif(100); c = factor(rep(c('No',
'Yes'),50)); df = data.frame(a,b,c)
head(df)
a b c
1 -1.4805676 0.9729927 No
2 1.5771695 0.2172974 Yes
3 -0.9567445 0.5205087 No
4 -0.9200052 0.8279428 Yes
5 -1.9976421 0.9641110 No
6 -0.2722960 0.6318801 Yes
mod = lm(a ~ b*c)
summary(mod)
Call:
lm(formula = a ~ b * c)
Residuals:
Min 1Q Median 3Q Max
-1.8196 -0.4754 -0.0246 0.5585 2.0941
Coefficients:
Estimate Std. Error t value Pr(|t|)
(Intercept) 0.2293 0.2314 0.9910.324
b-0.4226 0.3885 -1.0880.280
cYes 0.1578 0.3202 0.4930.623
b:cYes -0.5878 0.5621 -1.0460.298
Residual standard error: 0.8455 on 96 degrees of freedom
Multiple R-squared: 0.07385, Adjusted R-squared: 0.04491
F-statistic: 2.552 on 3 and 96 DF, p-value: 0.0601
--
Robert W. Baer, Ph.D.
Professor of Physiology
Kirksville College of Osteopathic Medicine
A. T. Still University of Health Sciences
800 W. Jefferson St.
Kirksville, MO 63501
660-626-2322
FAX 660-626-2965
--
From: Francesco Nutini nutini.france...@gmail.com
Sent: Friday, May 20, 2011 4:17 AM
To: [R] help r-help@r-project.org
Subject: [R] [r] regression coefficient for different factors
Dear R-helpers,
In my dataset I have two continuous variable (A and B) and one
factor.
I'm investigating the regression between the two variables usign the
command
lm(A ~ B, ...)
but now I want to know the regression coefficient (r2) of A vs. B for
every factors.
I know that I can obtain this information with excel, but the factor
have
68 levels...maybe [r] have a useful command.
Thanks,
Francesco Nutini
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r
Re: [R] how to enclose two xyplot
Sorry, my previous mail was incomplete. I mean, one of my xyplot is build with the command doubleYScale (in order to overlap two line with different Y-axis). But doubleYScale doesn't run with the nice command that you have suggested: first plot: a-xyplot(NDVI_P10~dek_num | Year, type=a, data=data, xlim=c(1,37), ylim=c(0.1,0.8), as.table = TRUE, layout = c(13,1), aspect = 2, col=darkgrey, col.axis=black, lwd=3, grid=T, par.settings = list(strip.background = list(col = c(gray90 second plot: b-xyplot(AVG_NDVI_P10~dek_num | Year, type=a, data=data, xlim=c(1,37), ylim=c(0.1,0.8), as.table = TRUE, layout = c(13,1), aspect = 2, col=black, col.axis=black, lwd=2) overlap first and second: double- update(doubleYScale(a, b, add.ylab2 = TRUE), par.settings = simpleTheme(col = c(black,black))) third plot: z- xyplot(z_NDVI_P10 ~dek_num | Year, type=h, data=data, xlim=c(1,37), ylim=c(-2.5,2.5), as.table = TRUE, layout = c(13,1), aspect = 2, col=black, col.axis=black, lwd=3, grid=T, par.settings = list(strip.background = list(col = c(gray90 enclose (?c.trellis): c( z,double, x.same = TRUE, y.same = T, layout = c(13,2)) Maybe there is no solution but, anyway, thanks for help! francesco From: nutini.france...@gmail.com To: baptiste.aug...@googlemail.com CC: r-help@r-project.org Subject: RE: [R] how to enclose two xyplot Date: Thu, 14 Apr 2011 15:31:12 + ok ?c.trellis works well. But I still have a problem. One of my plot is a combination of two xyplot on different scales: a-xyplot(NDVI_P10~dek_num | Year, type=a, data=data, xlim=c(1,37), ylim=c(0.1,0.8), as.table = TRUE, layout = c(13,1), aspect = 2, col=darkgrey, col.axis=black, lwd=3, grid=T, par.settings = list(strip.background = list(col = c(gray90 b-xyplot(AVG_NDVI_P10~dek_num | Year, type=a, data=data, xlim=c(1,37), ylim=c(0.1,0.8), as.table = TRUE, layout = c(13,1), aspect = 2, col=black, col.axis=black, lwd=2) update(doubleYScale(a, b, add.ylab2 = TRUE), par.settings = simpleTheme(col = c(black,black))) From: nutini.france...@gmail.com To: baptiste.aug...@googlemail.com CC: r-help@r-project.org Subject: RE: [R] FW: [r] how to enclose two xyplot Date: Thu, 14 Apr 2011 07:46:31 + Did you mean this? http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=latticeExtra:c.trellis In fact I'm already using latticeExtra package because my xyplot is little bit complicated... So, I'm tring, thanks fro tricks baptiste! Francesco Date: Thu, 14 Apr 2011 08:52:45 +1200 Subject: Re: [R] FW: [r] how to enclose two xyplot From: baptiste.aug...@googlemail.com To: nutini.france...@gmail.com CC: r-help@r-project.org Hi, Have you tried ?c.trellis in the latticeExtra package? HTH, baptiste On 13 April 2011 23:36, Francesco Nutini nutini.france...@gmail.com wrote: Dear R-users, I have to plot two xyplot, and I wish to enclose this two graphs with just one headline, the same x scale, the same grid etc. These parameters should tie in, in order to obtain, visually, a unique graph formed by two xyplot. I try to give an idea: xyplot1: |_|_|_| xyplot2: |_|_|_| what i want: | | | | |_|_|_| I tried to use the command par, but it's doesn't work with xyplot. The two plot have, by default, the same x-axis scale. I know it's just a visual solution, but it could be nice for a paper! Thanks a lot, Francesco Nutini PhD student [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] FW: [r] how to enclose two xyplot
Did you mean this? http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=latticeExtra:c.trellis In fact I'm already using latticeExtra package because my xyplot is little bit complicated... So, I'm tring, thanks fro tricks baptiste! Francesco Date: Thu, 14 Apr 2011 08:52:45 +1200 Subject: Re: [R] FW: [r] how to enclose two xyplot From: baptiste.aug...@googlemail.com To: nutini.france...@gmail.com CC: r-help@r-project.org Hi, Have you tried ?c.trellis in the latticeExtra package? HTH, baptiste On 13 April 2011 23:36, Francesco Nutini nutini.france...@gmail.com wrote: Dear R-users, I have to plot two xyplot, and I wish to enclose this two graphs with just one headline, the same x scale, the same grid etc. These parameters should tie in, in order to obtain, visually, a unique graph formed by two xyplot. I try to give an idea: xyplot1: |_|_|_| xyplot2: |_|_|_| what i want: | | | | |_|_|_| I tried to use the command par, but it's doesn't work with xyplot. The two plot have, by default, the same x-axis scale. I know it's just a visual solution, but it could be nice for a paper! Thanks a lot, Francesco Nutini PhD student [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] how to enclose two xyplot
ok ?c.trellis works well. But I still have a problem. One of my plot is a combination of two xyplot on different scales: a-xyplot(NDVI_P10~dek_num | Year, type=a, data=data, xlim=c(1,37), ylim=c(0.1,0.8), as.table = TRUE, layout = c(13,1), aspect = 2, col=darkgrey, col.axis=black, lwd=3, grid=T, par.settings = list(strip.background = list(col = c(gray90 b-xyplot(AVG_NDVI_P10~dek_num | Year, type=a, data=data, xlim=c(1,37), ylim=c(0.1,0.8), as.table = TRUE, layout = c(13,1), aspect = 2, col=black, col.axis=black, lwd=2) update(doubleYScale(a, b, add.ylab2 = TRUE), par.settings = simpleTheme(col = c(black,black))) From: nutini.france...@gmail.com To: baptiste.aug...@googlemail.com CC: r-help@r-project.org Subject: RE: [R] FW: [r] how to enclose two xyplot Date: Thu, 14 Apr 2011 07:46:31 + Did you mean this? http://rgm2.lab.nig.ac.jp/RGM2/func.php?rd_id=latticeExtra:c.trellis In fact I'm already using latticeExtra package because my xyplot is little bit complicated... So, I'm tring, thanks fro tricks baptiste! Francesco Date: Thu, 14 Apr 2011 08:52:45 +1200 Subject: Re: [R] FW: [r] how to enclose two xyplot From: baptiste.aug...@googlemail.com To: nutini.france...@gmail.com CC: r-help@r-project.org Hi, Have you tried ?c.trellis in the latticeExtra package? HTH, baptiste On 13 April 2011 23:36, Francesco Nutini nutini.france...@gmail.com wrote: Dear R-users, I have to plot two xyplot, and I wish to enclose this two graphs with just one headline, the same x scale, the same grid etc. These parameters should tie in, in order to obtain, visually, a unique graph formed by two xyplot. I try to give an idea: xyplot1: |_|_|_| xyplot2: |_|_|_| what i want: | | | | |_|_|_| I tried to use the command par, but it's doesn't work with xyplot. The two plot have, by default, the same x-axis scale. I know it's just a visual solution, but it could be nice for a paper! Thanks a lot, Francesco Nutini PhD student [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] FW: [r] how to enclose two xyplot
Dear R-users, I have to plot two xyplot, and I wish to enclose this two graphs with just one headline, the same x scale, the same grid etc. These parameters should tie in, in order to obtain, visually, a unique graph formed by two xyplot. I try to give an idea: xyplot1: |_|_|_| xyplot2: |_|_|_| what i want: | | | | |_|_|_| I tried to use the command par, but it's doesn't work with xyplot. The two plot have, by default, the same x-axis scale. I know it's just a visual solution, but it could be nice for a paper! Thanks a lot, Francesco Nutini PhD student [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] align xyplot
Hi Dennis and [R]users! as I said last week, I need more info about xyplot. Is it possible to change the color of the intestation of xyplot? By default is pale-pink, but light-gray is better for a paper. Thanks, Francesco From: nutini.france...@gmail.com To: djmu...@gmail.com CC: r-help@r-project.org Subject: RE: [R] [r] align xyplot Date: Thu, 3 Feb 2011 10:58:35 + Thanks Dennis, I have used the codes as.table = TRUE and aspect = 1 to obtain what i needed. Maybe I'll ask you more about xyplot, is very powerfull tool! Cheers, Francesco Date: Mon, 31 Jan 2011 04:33:27 -0800 Subject: Re: [R] [r] align xyplot From: djmu...@gmail.com To: nutini.france...@gmail.com CC: r-help@r-project.org Hi: Look at as.table = TRUE and (perhaps) the skip = options in xyplot(). as.table = TRUE will put 1998 in the upper left corner and proceed row-wise. Here's an example using the singer data: histogram( ~ height | voice.part, data = singer, nint = 17, endpoints = c(59.5, 76.5), layout = c(2,4), aspect = 1, xlab = Height (inches)) histogram( ~ height | voice.part, data = singer, nint = 17, as.table = TRUE, endpoints = c(59.5, 76.5), layout = c(2,4), aspect = 1, xlab = Height (inches)) The '2' voices are lower than the '1' voices, so the ordering is correct. HTH, Dennis On Mon, Jan 31, 2011 at 2:44 AM, Francesco Nutini nutini.france...@gmail.com wrote: Dear R users, I'm using xyplot to obtain a graph about a correlation x~y for different years (a categoric variable). The program dispose automatically the graphs in this way: 2010 2007 2008 2009 2004 2005 2006 2001 2002 2003 1998 1999 2000 Which code should I use to obtain this sequance of graphs? 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 I have tried with par code but it's doesn't work. Thanks for help, Francesco Nutini [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] align xyplot
From: ui...@hotmail.it To: djmu...@gmail.com CC: r-help@r-project.org Subject: RE: [R] [r] align xyplot Date: Tue, 22 Feb 2011 12:23:55 + Hi Dennis and [R]users! as I said last week, I need more info about xyplot. Is it possible to change the color of the intestation of xyplot? By default is pale-pink, but light-gray is better for a paper. Thanks, Francesco From: nutini.france...@gmail.com To: djmu...@gmail.com CC: r-help@r-project.org Subject: RE: [R] [r] align xyplot Date: Thu, 3 Feb 2011 10:58:35 + Thanks Dennis, I have used the codes as.table = TRUE and aspect = 1 to obtain what i needed. Maybe I'll ask you more about xyplot, is very powerfull tool! Cheers, Francesco Date: Mon, 31 Jan 2011 04:33:27 -0800 Subject: Re: [R] [r] align xyplot From: djmu...@gmail.com To: nutini.france...@gmail.com CC: r-help@r-project.org Hi: Look at as.table = TRUE and (perhaps) the skip = options in xyplot(). as.table = TRUE will put 1998 in the upper left corner and proceed row-wise. Here's an example using the singer data: histogram( ~ height | voice.part, data = singer, nint = 17, endpoints = c(59.5, 76.5), layout = c(2,4), aspect = 1, xlab = Height (inches)) histogram( ~ height | voice.part, data = singer, nint = 17, as.table = TRUE, endpoints = c(59.5, 76.5), layout = c(2,4), aspect = 1, xlab = Height (inches)) The '2' voices are lower than the '1' voices, so the ordering is correct. HTH, Dennis On Mon, Jan 31, 2011 at 2:44 AM, Francesco Nutini nutini.france...@gmail.com wrote: Dear R users, I'm using xyplot to obtain a graph about a correlation x~y for different years (a categoric variable). The program dispose automatically the graphs in this way: 2010 2007 2008 2009 2004 2005 2006 2001 2002 2003 1998 1999 2000 Which code should I use to obtain this sequance of graphs? 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 I have tried with par code but it's doesn't work. Thanks for help, Francesco Nutini [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] align xyplot
Sorry, I mean heading. Thanks for the tip. Francesco CC: djmu...@gmail.com; r-help@r-project.org From: dwinsem...@comcast.net To: ui...@hotmail.it Subject: Re: [R] [r] align xyplot Date: Tue, 22 Feb 2011 08:33:07 -0500 I don't know the term intestation, but from context it appears you might need: ?trellis.par.set -- David. On Feb 22, 2011, at 7:23 AM, Francesco Nutini wrote: Hi Dennis and [R]users! as I said last week, I need more info about xyplot. Is it possible to change the color of the intestation of xyplot? By default is pale-pink, but light-gray is better for a paper. Thanks, Francesco From: nutini.france...@gmail.com To: djmu...@gmail.com CC: r-help@r-project.org Subject: RE: [R] [r] align xyplot Date: Thu, 3 Feb 2011 10:58:35 + Thanks Dennis, I have used the codes as.table = TRUE and aspect = 1 to obtain what i needed. Maybe I'll ask you more about xyplot, is very powerfull tool! Cheers, Francesco Date: Mon, 31 Jan 2011 04:33:27 -0800 Subject: Re: [R] [r] align xyplot From: djmu...@gmail.com To: nutini.france...@gmail.com CC: r-help@r-project.org Hi: Look at as.table = TRUE and (perhaps) the skip = options in xyplot(). as.table = TRUE will put 1998 in the upper left corner and proceed row-wise. Here's an example using the singer data: histogram( ~ height | voice.part, data = singer, nint = 17, endpoints = c(59.5, 76.5), layout = c(2,4), aspect = 1, xlab = Height (inches)) histogram( ~ height | voice.part, data = singer, nint = 17, as.table = TRUE, endpoints = c(59.5, 76.5), layout = c(2,4), aspect = 1, xlab = Height (inches)) The '2' voices are lower than the '1' voices, so the ordering is correct. HTH, Dennis On Mon, Jan 31, 2011 at 2:44 AM, Francesco Nutini nutini.france...@gmail.com wrote: Dear R users, I'm using xyplot to obtain a graph about a correlation x~y for different years (a categoric variable). The program dispose automatically the graphs in this way: 2010 2007 2008 2009 2004 2005 2006 2001 2002 2003 1998 1999 2000 Which code should I use to obtain this sequance of graphs? 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 I have tried with par code but it's doesn't work. Thanks for help, Francesco Nutini [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. David Winsemius, MD West Hartford, CT [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] align xyplot
Thanks Dennis, I have used the codes as.table = TRUE and aspect = 1 to obtain what i needed. Maybe I'll ask you more about xyplot, is very powerfull tool! Cheers, Francesco Date: Mon, 31 Jan 2011 04:33:27 -0800 Subject: Re: [R] [r] align xyplot From: djmu...@gmail.com To: nutini.france...@gmail.com CC: r-help@r-project.org Hi: Look at as.table = TRUE and (perhaps) the skip = options in xyplot(). as.table = TRUE will put 1998 in the upper left corner and proceed row-wise. Here's an example using the singer data: histogram( ~ height | voice.part, data = singer, nint = 17, endpoints = c(59.5, 76.5), layout = c(2,4), aspect = 1, xlab = Height (inches)) histogram( ~ height | voice.part, data = singer, nint = 17, as.table = TRUE, endpoints = c(59.5, 76.5), layout = c(2,4), aspect = 1, xlab = Height (inches)) The '2' voices are lower than the '1' voices, so the ordering is correct. HTH, Dennis On Mon, Jan 31, 2011 at 2:44 AM, Francesco Nutini nutini.france...@gmail.com wrote: Dear R users, I'm using xyplot to obtain a graph about a correlation x~y for different years (a categoric variable). The program dispose automatically the graphs in this way: 2010 2007 2008 2009 2004 2005 2006 2001 2002 2003 1998 1999 2000 Which code should I use to obtain this sequance of graphs? 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 I have tried with par code but it's doesn't work. Thanks for help, Francesco Nutini [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] [r] align xyplot
Dear R users, I'm using xyplot to obtain a graph about a correlation x~y for different years (a categoric variable). The program dispose automatically the graphs in this way: 2010 2007 2008 2009 2004 2005 2006 2001 2002 2003 1998 1999 2000 Which code should I use to obtain this sequance of graphs? 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 I have tried with par code but it's doesn't work. Thanks for help, Francesco Nutini [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] overlap different line in a xyplot (lattice)
From: fe...@nfrac.org
Date: Sun, 12 Dec 2010 11:47:55 +1100
Subject: Re: [R] overlap different line in a xyplot (lattice)
To: ehl...@ucalgary.ca
CC: nutini.france...@gmail.com; r-help@r-project.org
On 12 December 2010 00:08, Peter Ehlers ehl...@ucalgary.ca wrote:
On 2010-12-11 03:12, Francesco Nutini wrote:
mmmh, yes this method works...
but I have to overlap this two graphs:
xyplot(a ~b |sites, data=dataset, col=red)
xyplot(c ~b |sites, data=dataset, col=blue)
a, b and c are columns in the same dataset. Sites is also a column in
the dataset, but it's a factorial variables.
How can I use your method?
The idea is the same: you need to get your data
into long format with a grouping variable and
then use the 'groups' argument to xyplot.
Here's fake data frame (you should have provided one):
DF - data.frame(y1 = rnorm(30),
y2 = rnorm(30) + 2,
x = rep(1:10, 3),
sites = gl(3, 10, lab=LETTERS[1:3]))
## Use the reshape2 package to melt the data:
## (or use reshape() in base R)
require(reshape2)
DF1 - melt(DF, measure.vars = c('y1', 'y2'),
variable.name = 'grp', value.name = 'y')
## and plot:
require(lattice)
p - xyplot( y ~ x | sites, data = DF1, groups = grp,
col = c(red, blue), type = b)
print(p)
Peter Ehlers
By the way, in this particular case there is a shortcut which does the
reshaping internally:
xyplot(y1 + y2 ~ x | sites, DF, type = b)
Great Felix! this is what I was looking for!
But if y1 and y2 have a different scales? Can I plot, for example y2, on
secondary axis?
Thanks for your help,
Francesco Nutini
sorry for my ignorance!
Francesco Nutini
Date: Fri, 10 Dec 2010 10:13:00 -0800
From: ehl...@ucalgary.ca
To: nutini.france...@gmail.com
CC: r-help@r-project.org
Subject: Re: [R] [r] overlap different line in a xyplot (lattice)
On 2010-12-10 07:04, Francesco Nutini wrote:
dear [R] users,
is there a way to plot different data (but with the same
x-variables) in the same xyplot window?
There are already a similar question, but the answer is not enought
explanatory...
Something like this?
x - rep(1:10, 2)
y1 - rnorm(10); y2 - rnorm(10) + 2
y - c(y1, y2)
g - gl(2, 10)
xyplot( y ~ x, groups = g, type = 'b')
Peter Ehlers
Thanks a lot,
Francesco
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
--
Felix Andrews / $B0BJ!N)(B
http://www.neurofractal.org/felix/
[[alternative HTML version deleted]]
__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
[R] post-hoc test for ANCOVA method
Dear [R] Users, I have implemented a linear model with this syntax: model- lm (var_dependent ~ var_indipendent + factor + var_indipendent : factor, dataframe) anova (model) Response: var_dependent Df Sum Sq Mean Sq F value Pr(F) var_indipendent 1 20.5522 20.5522 87.8701 1.167e-14 *** factor 1 0.10600.1060 0.4530 0.50277 var_indipendent:factor 1 1.38611.3861 5..92610.01706 * Residuals 83 19.4132 0.2339 --- Signif. codes: 0 *** 0.001 ** 0.01 * 0.05 . 0.1 1 The factor variable influence significatvly the regression. Which test I have to use to understand whom factors (i.e. in my dataset factors are the different sampling sites) influence the correlation? Any suggestions how to perform post-hoc comparions? Thanks a lot! Francesco Nutini P.S. numbers have no significance, it's just an example [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] [r] overlap different line in a xyplot (lattice)
mmmh, yes this method works... but I have to overlap this two graphs: xyplot( a ~ b | sites, data=dataset, col=red) xyplot( c ~ b | sites, data=dataset, col=blue) a, b and c are columns in the same dataset. Sites is also a column in the dataset, but it's a factorial variables. How can I use your method? sorry for my ignorance! Francesco Nutini Date: Fri, 10 Dec 2010 10:13:00 -0800 From: ehl...@ucalgary.ca To: nutini.france...@gmail.com CC: r-help@r-project.org Subject: Re: [R] [r] overlap different line in a xyplot (lattice) On 2010-12-10 07:04, Francesco Nutini wrote: dear [R] users, is there a way to plot different data (but with the same x-variables) in the same xyplot window? There are already a similar question, but the answer is not enought explanatory... Something like this? x - rep(1:10, 2) y1 - rnorm(10); y2 - rnorm(10) + 2 y - c(y1, y2) g - gl(2, 10) xyplot( y ~ x, groups = g, type = 'b') Peter Ehlers Thanks a lot, Francesco [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] [r] overlap different line in a xyplot (lattice)
dear [R] users, is there a way to plot different data (but with the same x-variables) in the same xyplot window? There are already a similar question, but the answer is not enought explanatory... Thanks a lot, Francesco [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] difference between linear model scatterplot matrix
Dear R-users, I'm studing a DB, structured like this (just a little part of my dataset): _ Site Latitude Longitude Year Tot-Prod Total_Density dmp Dendoudi-1 15.441964 -13.540179 2005 3271.16 1007 16993.25 Dendoudi-2 15.397321 -13.611607 2005 1616.84 250 25376.67 … … … … … … … _ If I made a scatterplotmatrix with the command show below I obtain a matrix (visible in the image) that show which variables is more correlated with dmp data (violet color). But, if I made a linear model between the dependent variable (dmp) and many independent variables I get different information about the significativity of the variable. I mean, variables that appear correlated with dependent variable in the matrix result not correlated in the summary of linear model, and vice versa. Have I made a mistake in the interpretation of the result, or not? Thank you in advance, Francesco #command for matrix-plot dta - senegal5[c( 2,4,5,6,7,8,9,13,15,17,21, 39,44,45)] dta.r - abs(cor(dta)) dta.col - dmat.color(dta.r) dta.o - order.single(dta.r) cpairs(dta, dta.o, panel.colors=dta.col, gap=.5, main=Variables Ordered and Colored by Correlation) #command for linear model and summary() a- lm ( dmp ~ Latitude + Longitude + Year + Tot.Prod +Herbaceous.Prod.kg.ha. + Leaf.Prod + Tree.bio + Total_Density + X1st.SpecieDensity.trunk.ha.+ X2nd.SpecieDensity.trunk.ha.+ Herb_Specie_Index1 + iNDVI.JASO. + RFE.Cum.JASO., data=senegal5 ) summary(a) Call: lm(formula = dmp ~ Latitude + Longitude + Year + Tot.Prod + Herbaceous.Prod.kg.ha. + Leaf.Prod + Tree.bio + Total_Density + X1st.SpecieDensity.trunk.ha. + X2nd.SpecieDensity.trunk.ha. + Herb_Specie_Index1 + iNDVI.JASO. + RFE.Cum.JASO., data = senegal5) Residuals: Min 1Q Median 3Q Max -676.49 -195.77 -33.06 113.34 816.17 Coefficients: Estimate Std. Error t value Pr(|t|) (Intercept) -3.283e+05 4.505e+04 -7.288 4.41e-11 *** Latitude -6.100e+01 1.990e+02 -0.307 0.7598 Longitude-3.617e+02 8.639e+01 -4.187 5.60e-05 *** Year 1.604e+02 2.300e+01 6.973 2.15e-10 *** Tot.Prod -4.893e+00 1.565e+02 -0.031 0.9751 Herbaceous.Prod.kg.ha.4.905e+00 1.565e+02 0.031 0.9751 Leaf.Prod 4.842e+00 1.565e+02 0.031 0.9754 Tree.bio -4.241e+01 2.771e+02 -0.153 0.8786 Total_Density-1.930e+00 8.933e-01 -2.160 0.0329 * X1st.SpecieDensity.trunk.ha. 1.992e+00 9.246e-01 2.154 0.0333 * X2nd.SpecieDensity.trunk.ha. 3.416e+00 1.642e+00 2.080 0.0398 * Herb_Specie_Index1 -1.091e+00 1.844e+00 -0.592 0.5552 iNDVI.JASO. 8.914e+02 6.076e+01 14.670 2e-16 *** RFE.Cum.JASO. 2.525e+00 4.529e-01 5.575 1.68e-07 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Residual standard error: 295.3 on 114 degrees of freedom Multiple R-squared: 0.9206, Adjusted R-squared: 0.9116 F-statistic: 101.7 on 13 and 114 DF, p-value: 2.2e-16 __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] [r] ANCOVA method
Dear [R] Users, I have implemented a linear model with this syntax: model- lm (var_dependent ~ var_indipendent + factor + var_indipendent : factor, dataframe) anova (model) Response: var_dependent Df Sum Sq Mean Sq F valuePr(F) var_indipendent 1 20.5522 20.5522 87.87011.167e-14 *** factor1 0.1060 0.1060 0.4530 0.50277 var_indipendent:factor1 1.3861 1.3861 5.9261 0.01706 * Residuals 83 19.4132 0.2339 --- Signif. codes: 0 *** 0.001 ** 0.01 * 0.05 . 0.1 1 If I read the line var_indipendent:factor can I understand if the factor influence significatvly the regression between dependent-indipendent variable? Thanks a lot! Francesco Nutini P.S. numbers have no significance, it's just an example [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] summary() of a linear model
Dear R-users, Why variables that appear correlated with dependent variable in a scatterplot, results not correlated in the summary of linear model, and vice versa? I mean, variable Longitude (see the example below) is correlated (***) with dependent variable in the linear model. But if I made a scatterplot the r2 is very low. How can I interpretate the information of command summary()? Thank you in advance, Francesco #command for summary() of linear model summary(model_example) Call: lm(formula = dmp ~ Latitude + Longitude + Year + Tot.Prod + RFE.Cum.JASO., data = senegal5) Residuals: Min 1Q Median 3Q Max -676.49 -195.77 -33.06 113.34 816.17 Coefficients: Estimate Std. Error t value Pr(|t|) (Intercept) -3.283e+05 4.505e+04 -7.288 4.41e-11 *** Latitude -6.100e+01 1.990e+02 -0.307 0.7598 Longitude-3.617e+02 8.639e+01 -4.187 5.60e-05 *** Year 1.604e+02 2.300e+01 6.973 2.15e-10 *** Tot.Prod -4.893e+00 1.565e+02 -0.031 0.9751RFE.Cum.JASO. 2.525e+00 4.529e-01 5.575 1.68e-07 *** --- Signif. codes: 0 *** 0.001 ** 0.01 * 0.05 . 0.1 1 [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
