Re: [R] weighted least squares vs linear regression
sorry, i ommited some important information. this is a documentation question! i meant to ask how to find out how R calculates the standard error and how it differs between the two models -- View this message in context: http://n4.nabble.com/weighted-least-squares-vs-linear-regression-tp1387957p1393060.html Sent from the R help mailing list archive at Nabble.com. __ 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] weighted least squares vs linear regression
I need to find out the difference between the way R calculates weighted regression and standard regression. I want to plot a 95% confidence interval around an estimte i got from least squares regression. I cant find he documentation for this ive looked in ?stats ?lm ?predict.lm ?weights ?residuals.lm Can anyone shed light? thanks Chris. -- View this message in context: http://n4.nabble.com/weighted-least-squares-vs-linear-regression-tp1387957p1387957.html Sent from the R help mailing list archive at Nabble.com. __ 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] testing the fit of a regression and comparing regressn models
anyone? -- View this message in context: http://n4.nabble.com/testing-the-fit-of-a-regression-and-comparing-regressn-models-tp1055033p1101383.html Sent from the R help mailing list archive at Nabble.com. __ 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] Logistic regression
can you do Logistic regression in R, if so how do you do it and how do you test the fit of a model? -- View this message in context: http://n4.nabble.com/Logistic-regression-tp1059870p1059870.html Sent from the R help mailing list archive at Nabble.com. __ 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] testing the fit of a regression and comparing regressn models
I got the usual regression output from a model i did in R. Im looking for alternative test criteria that can be done in R which are not in the standard lm output. I need to: a) asses the fit of a logistic regression model and of a linear regression model b) compare the fit of models against each other c) Does r do things like... Spearman’s rank Cooks distance Deviance BIC Elbow/Scree plot -- View this message in context: http://n4.nabble.com/testing-the-fit-of-a-regression-and-comparing-regressn-models-tp1055033p1055033.html Sent from the R help mailing list archive at Nabble.com. __ 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] forecasting
Very good patrick, lol. does anyone have any useful ideas Patrick Burns wrote: > > DispersionMap wrote: >> >> What about validating forecasting results. I have 5 years of data and >> have >> been forecasting the following three years i.e. 2010 to 2012. >> >> How can i check my forecast. >> >> Why types of tests are out there that can be implemented in R?? > > isbn 9780553213515 > > Sorry, couldn't resist, > > Pat > > __ > 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. > > -- View this message in context: http://n4.nabble.com/forecasting-tp974326p975920.html Sent from the R help mailing list archive at Nabble.com. __ 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] forecasting
What about validating forecasting results. I have 5 years of data and have been forecasting the following three years i.e. 2010 to 2012. How can i check my forecast. Why types of tests are out there that can be implemented in R?? -- View this message in context: http://n4.nabble.com/forecasting-tp974326p975010.html Sent from the R help mailing list archive at Nabble.com. __ 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] forecasting
Hi thanks. Another question... When R prints the regression output onto the screen after i perform my regression: output_dat <- lm( results <- summary(output_dat) results How do i print the regression output to a file for inclusion into a document. I tried: cat(summary(output_dat), file="results.txt")) but this doesnt work and it tells me type list (in the first argument) cannot be handled by cat. So how do i get the output of lm to the desktopas i need to put this in a document (in atble would be even better). Stephan Kolassa wrote: > > ?predict > > HTH > Stephan > > DispersionMap schrieb: >> >> I have some data that i ran a regression on and got the usual r output, >> with >> the a intercept and b coefficient for my independent variable. >> >> i want to forecast the number of future events using these parameters. >> >> >> What function / packages in R would you recommend to be used in good >> effect >> for these purposes?? > > __ > 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. > > -- View this message in context: http://n4.nabble.com/forecasting-tp974326p974704.html Sent from the R help mailing list archive at Nabble.com. __ 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] forecasting
I have some data that i ran a regression on and got the usual r output, with the a intercept and b coefficient for my independent variable. i want to forecast the number of future events using these parameters. What function / packages in R would you recommend to be used in good effect for these purposes?? -- View this message in context: http://n4.nabble.com/forecasting-tp974326p974326.html Sent from the R help mailing list archive at Nabble.com. __ 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] symbols plots - with circles
Im doing a plot where i look at clusters of data with circles indicating how big the cluster is: palette(rainbow(1000, end = 0.9)) symbols(data$lab, data$bak, circles = var21, main = "Circles Plot", fg = "grey", bg = 1:1000) As i have lots and lots of data points to plot i get alot of circles. The problem is that wjen i use colour in the circles the big circles cover up the smaller ones sitting underneath. What i really want is different sizes of circles to have different colours. Any ideas how to fix this??? -- View this message in context: http://n4.nabble.com/symbols-plots-with-circles-tp964686p964686.html Sent from the R help mailing list archive at Nabble.com. __ 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] categorical vs numerical
im using w7 ultimate
Peter Ehlers wrote:
>
> pkg:lattice is installed as part of the base R distribution.
> You don't need to install it.
>
> DispersionMap wrote:
>> Thanks, ill give them whirl...when i was installing the lattice package i
>> got
>> the error in bold below...why does it say permission denied and what
>> effect
>> does this have?
> I guess that you're on Vista and don't have write permission
> for that directory.
>
> -Peter Ehlers
>>
>>> utils:::menuInstallLocal()
>> package 'lattice' successfully unpacked and MD5 sums checked
>> updating HTML package descriptions
>> Warning message:
>> In file.create(f.tg) :
>> cannot create file 'C:\PROGRA~1\R\R-29~1.2/doc/html/packages.html',
>> reason
>> 'Permission denied'
>>
>>> local({pkg <- select.list(sort(.packages(all.available = TRUE)))
>> + if(nchar(pkg)) library(pkg, character.only=TRUE)})
>> Warning message:
>> package 'lattice' was built under R version 2.10.0
>>
>> I have it loaded
>>
>>
>>
>> Peter Ehlers wrote:
>>> Whoops, that should be
>>>
>>> densityplot(~y|g, data=dat, plot.points=FALSE, layout=c(1,4))
>>>
>>> -Peter Ehlers
>>>
>>> Peter Ehlers wrote:
>>>> You could try density plots:
>>>> If dat is your dataframe, y is your numerical vector and
>>>> g is your factor,
>>>>
>>>> library(lattice)
>>>> trellis.device(height=9, width=7)
>>>> densityplot(~g|y, data=dat, plot.points=FALSE, layout=c(1,4))
>>>>
>>>> See ?densityplot, ?panel.densityplot
>>>>
>>>> -Peter Ehlers
>>>>
>>>> DispersionMap wrote:
>>>>> Thanks, however the group sizes are really big (each a,b,c.. category
>>>>> has
>>>>> 60,000 observations). Its hard to see whats going on withe the
>>>>> jittered
>>>>> stripchart, i just get big black blobs.
>>>>>
>>>>> Any other suggestions?
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> Peter Ehlers wrote:
>>>>>> If your group sizes are not too large, I would use jittered
>>>>>> stripcharts.
>>>>>> They're more informative than boxplots and much less subject to
>>>>>> misinterpretation. One warning, I'm not fond of the default pch=0.
>>>>>>
>>>>>> -Peter Ehlers
>>>>>>
>>>>>> DispersionMap wrote:
>>>>>>> What ways are there to plot categorical vs numerical data in R.
>>>>>>>
>>>>>>>
>>>>>>> I have two columns: one with categorical data in 5 categories
>>>>>>> a,b,c,d,e,
>>>>>>> and
>>>>>>> a numerical column with integers between 1 and 100.
>>>>>>>
>>>>>>> I have used a boxplot with a,b,c,d,e on the x-axis and an increasing
>>>>>>> numerical scale on the y-axis. This look fine but im looking for
>>>>>>> other
>>>>>>> ways
>>>>>>> to present the data.
>>>>>>>
>>>>>>>
>>>>>>> What other ways can i do this???
>>>>>>>
>>>>>> __
>>>>>> 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-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.
>>>>
>>>>
>>> --
>>> Peter Ehlers
>>> University of Calgary
>>> 403.202.3936
>>>
>>> __
>>> 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.
>>>
>>>
>>
>
> --
> Peter Ehlers
> University of Calgary
> 403.202.3936
>
> __
> 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.
>
>
--
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__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] categorical vs numerical
Thanks, ill give them whirl...when i was installing the lattice package i got
the error in bold below...why does it say permission denied and what effect
does this have?
> utils:::menuInstallLocal()
package 'lattice' successfully unpacked and MD5 sums checked
updating HTML package descriptions
Warning message:
In file.create(f.tg) :
cannot create file 'C:\PROGRA~1\R\R-29~1.2/doc/html/packages.html', reason
'Permission denied'
> local({pkg <- select.list(sort(.packages(all.available = TRUE)))
+ if(nchar(pkg)) library(pkg, character.only=TRUE)})
Warning message:
package 'lattice' was built under R version 2.10.0
I have it loaded
Peter Ehlers wrote:
>
> Whoops, that should be
>
> densityplot(~y|g, data=dat, plot.points=FALSE, layout=c(1,4))
>
> -Peter Ehlers
>
> Peter Ehlers wrote:
>> You could try density plots:
>> If dat is your dataframe, y is your numerical vector and
>> g is your factor,
>>
>> library(lattice)
>> trellis.device(height=9, width=7)
>> densityplot(~g|y, data=dat, plot.points=FALSE, layout=c(1,4))
>>
>> See ?densityplot, ?panel.densityplot
>>
>> -Peter Ehlers
>>
>> DispersionMap wrote:
>>> Thanks, however the group sizes are really big (each a,b,c.. category
>>> has
>>> 60,000 observations). Its hard to see whats going on withe the jittered
>>> stripchart, i just get big black blobs.
>>>
>>> Any other suggestions?
>>>
>>>
>>>
>>>
>>> Peter Ehlers wrote:
>>>> If your group sizes are not too large, I would use jittered
>>>> stripcharts.
>>>> They're more informative than boxplots and much less subject to
>>>> misinterpretation. One warning, I'm not fond of the default pch=0.
>>>>
>>>> -Peter Ehlers
>>>>
>>>> DispersionMap wrote:
>>>>> What ways are there to plot categorical vs numerical data in R.
>>>>>
>>>>>
>>>>> I have two columns: one with categorical data in 5 categories
>>>>> a,b,c,d,e,
>>>>> and
>>>>> a numerical column with integers between 1 and 100.
>>>>>
>>>>> I have used a boxplot with a,b,c,d,e on the x-axis and an increasing
>>>>> numerical scale on the y-axis. This look fine but im looking for other
>>>>> ways
>>>>> to present the data.
>>>>>
>>>>>
>>>>> What other ways can i do this???
>>>>>
>>>> __
>>>> 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-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.
>>
>>
>
> --
> Peter Ehlers
> University of Calgary
> 403.202.3936
>
> __
> 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.
>
>
--
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__
R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
Re: [R] categorical vs numerical
Thanks, however the group sizes are really big (each a,b,c.. category has 60,000 observations). Its hard to see whats going on withe the jittered stripchart, i just get big black blobs. Any other suggestions? Peter Ehlers wrote: > > If your group sizes are not too large, I would use jittered stripcharts. > They're more informative than boxplots and much less subject to > misinterpretation. One warning, I'm not fond of the default pch=0. > > -Peter Ehlers > > DispersionMap wrote: >> What ways are there to plot categorical vs numerical data in R. >> >> >> I have two columns: one with categorical data in 5 categories a,b,c,d,e, >> and >> a numerical column with integers between 1 and 100. >> >> I have used a boxplot with a,b,c,d,e on the x-axis and an increasing >> numerical scale on the y-axis. This look fine but im looking for other >> ways >> to present the data. >> >> >> What other ways can i do this??? >> > > __ > 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. > > -- View this message in context: http://n4.nabble.com/categorical-vs-numerical-tp948817p949117.html Sent from the R help mailing list archive at Nabble.com. __ 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] categorical vs numerical
What ways are there to plot categorical vs numerical data in R. I have two columns: one with categorical data in 5 categories a,b,c,d,e, and a numerical column with integers between 1 and 100. I have used a boxplot with a,b,c,d,e on the x-axis and an increasing numerical scale on the y-axis. This look fine but im looking for other ways to present the data. What other ways can i do this??? -- View this message in context: http://n4.nabble.com/categorical-vs-numerical-tp948817p948817.html Sent from the R help mailing list archive at Nabble.com. __ 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] Ggplot2: Elegant Graphics for Data Analysis (Use R) (2009 Paperback)
Is this book worth its dollar? If so, why?, if not, why not? Cheers. -- View this message in context: http://n4.nabble.com/Ggplot2-Elegant-Graphics-for-Data-Analysis-Use-R-2009-Paperback-tp931702p931702.html Sent from the R help mailing list archive at Nabble.com. __ 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] Learning R
Data Analysis and Graphics Using R - An Example-Based Approach John Maindonald and John Braun 2nd edn, Cambridge University Press, January 2007 susan jacobs wrote: > > Hi, > > im working in R but honestly i don t know how to apply the formulas in my > problem, can someone give some help? > > > I already learn how we use the formulas but im not understanding the main > issue in my problem. > > > > Johannes Huesing wrote: >> >> Esmail [Mon, Nov 30, 2009 at 01:07:15PM CET]: >> >>> ps: Just checked, 'R in a Nutshell': >>> http://oreilly.com/catalog/9780596801717 >>> release date dec 2009/jan 2010 >> >> You can't really judge a book by its cover, and in this case not even >> the cover is presented to us. But judging by the author's background, >> I'd presume that you are likely to get a computer scientist's intro >> to R. This is an angle that very few books have taken so far ... most >> are written by statisticians who write from the problem solving point >> of view. If you are a statistician, you are probably well served with >> some of the books available on R. Among these, I too found Venables >> and Ripley a good read, as they give you some depth on S the language, >> rather than talking about "101 wonderful things you can do with R". >> -- >> Johannes Hüsing There is something fascinating about >> science. >> One gets such wholesale returns of >> conjecture >> mailto:johan...@huesing.name from such a trifling investment of fact. >> >> http://derwisch.wikidot.com (Mark Twain, "Life on the >> Mississippi") >> >> __ >> 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. >> >> > > -- View this message in context: http://n4.nabble.com/Learning-R-tp931099p931666.html Sent from the R help mailing list archive at Nabble.com. __ 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] column of dates into time series
? like this do you mean...
> dput(Weeks)
structure(c(370L, 342L, 333L, 317L, 308L, 298L, 289L, 269L, 265L,
257L, 254L, 253L, 252L, 249L, 243L, 243L, 239L, 239L, 236L, 234L,
233L, 232L, 230L, 230L, 229L, 229L, 229L, 228L, 227L, 226L, 225L,
222L, 218L, 217L, 216L, 215L, 215L, 214L, 214L, 214L, 212L, 211L,
209L, 209L, 208L, 207L, 205L, 205L, 204L, 204L, 203L, 202L, 202L,
201L, 200L, 199L, 197L, 197L, 197L, 197L, 195L, 194L, 194L, 194L,
193L, 193L, 193L, 193L, 192L, 191L, 190L, 190L, 190L, 189L, 189L,
189L, 189L, 189L, 189L, 188L, 188L, 187L, 187L, 186L, 183L, 182L,
182L, 181L, 180L, 180L, 180L, 179L, 179L, 179L, 178L, 178L, 177L,
177L, 177L, 13091L), .Names = c("2007-12-17", "2009-01-05", "2008-06-09",
"2008-12-08", "2009-02-09", "2008-12-01", "2008-05-12", "2009-02-16",
"2007-01-22", "2008-06-02", "2007-01-29", "2008-05-19", "2007-06-11",
"2008-06-16", "2008-05-26", "2008-06-23", "2008-11-03", "2009-01-12",
"2008-07-21", "2007-02-05", "2008-02-18", "2008-07-14", "2008-01-14",
"2008-10-27", "2007-12-10", "2008-03-17", "2008-08-04", "2008-11-24",
"2006-12-18", "2007-11-26", "2007-11-12", "2006-11-06", "2007-06-25",
"2006-04-03", "2008-01-07", "2006-04-10", "2008-07-28", "2006-05-08",
"2006-06-05", "2009-02-23", "2007-10-22", "2007-02-19", "2008-06-30",
"2009-02-02", "2007-06-04", "2007-12-03", "2006-11-13", "2007-09-03",
"2006-08-28", "2008-07-07", "2007-05-14", "2006-08-14", "2007-04-16",
"2006-07-31", "2008-12-15", "2006-09-11", "2006-06-12", "2008-01-21",
"2008-04-07", "2009-01-26", "2008-02-11", "2007-04-02", "2007-04-09",
"2008-04-21", "2006-08-07", "2007-11-19", "2008-04-14", "2008-05-05",
"2006-07-24", "2007-05-21", "2006-06-19", "2006-10-09", "2007-02-12",
"2007-03-26", "2007-07-09", "2007-11-05", "2008-02-25", "2008-09-08",
"2009-08-10", "2008-09-15", "2009-06-08", "2006-05-15", "2007-07-02",
"2009-06-01", "2008-11-17", "2006-06-26", "2009-06-29", "2007-08-06",
"2007-08-13", "2009-01-19", "2009-07-13", "2006-04-17", "2007-03-05",
"2007-12-24", "2006-10-16", "2008-08-11", "2006-05-29", "2006-11-27",
"2007-10-29", "(Other)"))
David Winsemius wrote:
>
> How about a representation of the data that one could so something
> with? By that I mean either by the "dump" method described in the
> Posting Guide or by using dput:
> > ttt <- c(1,2)
>
> > dput(ttt)
> c(1, 2)
>
> > dump("ttt", stdout() )
> ttt <-
> c(1, 2)
>
> Did you honestly expect anyone in their right mind to reassemble that
> data from the console text output???
>
> On Nov 29, 2009, at 10:46 AM, DispersionMap wrote:
>
>>
>> Thanks again David,
>>
>> Heres what happened:
>>
>>> Weeks<-summary(cut(data$Raised.Date, breaks="weeks"))
>>> Weeks
>> 2007-12-17 2009-01-05 2008-06-09 2008-12-08 2009-02-09 2008-12-01
>> 370342333317308298
>> 2008-05-12 2009-02-16 2007-01-22 2008-06-02 2007-01-29 2008-05-19
>> 289269265257254253
>> 2007-06-11 2008-06-16 2008-05-26 2008-06-23 2008-11-03 2009-01-12
>> 252249243243239239
>> 2008-07-21 2007-02-05 2008-02-18 2008-07-14 2008-01-14 2008-10-27
>> 236234233232230230
>> 2007-12-10 2008-03-17 2008-08-04 2008-11-24 2006-12-18 2007-11-26
>> 229229229228227226
>> 2007-11-12 2006-11-06 2007-06-25 2006-04-03 2008-01-07 2006-04-10
>> 225222218217216215
>> 2008-07-28 2006-05-08 2006-06-05 2009-02-23 2007-10-22 2007-02-19
>> 215214214214212211
>> 2008-06-30 2009-02-02 2007-06-04 2007-12-03 2006-11-13 2007-09-03
>> 209209
Re: [R] column of dates into time series
Thanks again David,
Heres what happened:
> Weeks<-summary(cut(data$Raised.Date, breaks="weeks"))
> Weeks
2007-12-17 2009-01-05 2008-06-09 2008-12-08 2009-02-09 2008-12-01
370342333317308298
2008-05-12 2009-02-16 2007-01-22 2008-06-02 2007-01-29 2008-05-19
289269265257254253
2007-06-11 2008-06-16 2008-05-26 2008-06-23 2008-11-03 2009-01-12
252249243243239239
2008-07-21 2007-02-05 2008-02-18 2008-07-14 2008-01-14 2008-10-27
236234233232230230
2007-12-10 2008-03-17 2008-08-04 2008-11-24 2006-12-18 2007-11-26
229229229228227226
2007-11-12 2006-11-06 2007-06-25 2006-04-03 2008-01-07 2006-04-10
225222218217216215
2008-07-28 2006-05-08 2006-06-05 2009-02-23 2007-10-22 2007-02-19
215214214214212211
2008-06-30 2009-02-02 2007-06-04 2007-12-03 2006-11-13 2007-09-03
209209208207205205
2006-08-28 2008-07-07 2007-05-14 2006-08-14 2007-04-16 2006-07-31
204204203202202201
2008-12-15 2006-09-11 2006-06-12 2008-01-21 2008-04-07 2009-01-26
200199197197197197
2008-02-11 2007-04-02 2007-04-09 2008-04-21 2006-08-07 2007-11-19
195194194194193193
2008-04-14 2008-05-05 2006-07-24 2007-05-21 2006-06-19 2006-10-09
193193192191190190
2007-02-12 2007-03-26 2007-07-09 2007-11-05 2008-02-25 2008-09-08
190189189189189189
2009-08-10 2008-09-15 2009-06-08 2006-05-15 2007-07-02 2009-06-01
189188188187187186
2008-11-17 2006-06-26 2009-06-29 2007-08-06 2007-08-13 2009-01-19
183182182181180180
2009-07-13 2006-04-17 2007-03-05 2007-12-24 2006-10-16 2008-08-11
180179179179178178
2006-05-29 2006-11-27 2007-10-29(Other)
177177177 13091
As you can see its come out a little disorderly though.
I have to plot the number of events under each date in a time series.
How do i order the dates and their counts?
David Winsemius wrote:
>
>
> On Nov 29, 2009, at 7:52 AM, Linlin Yan wrote:
>
>> There is no year() function. Maybe you can try format() instead.
>>
>> On Sun, Nov 29, 2009 at 8:44 PM, DispersionMap > > wrote:
>>>
>>> i have a column of dates in this format:
>>>
>>> data[,"Raised.Date"] <- as.Date(data[,"Raised.Date"], "%d/%m/%Y");
>>> data[1:10,"Raised.Date"]
>>> [1] "2006-07-07" "2006-07-07" "2006-04-03" "2006-04-03" "2006-04-03"
>>> "2006-04-03" "2006-04-03" "2006-04-03" "2006-04-03" "2006-04-03"
>>>
>>> I can turn them into months like this...
>>>
>>> Month<-months(data[,"Raised.Date"])
>>> Month[1:10]
>>> [1] "July" "July" "April" "April" "April" "April" "April" "April"
>>> "April"
>>> "April"
>>>
>>>
>>> But i also want to turn them into years (and also weeks later on),
>>> so tried
>>> this...
>
> library(chron)
> ?cut.dates
>
> The argument breaks has several options including one of c("days",
> "weeks", "months", "year")
>
> > dts <- Sys.Date() - 1:20
>
> > cut(dts, breaks="weeks")
> [1] 2009-11-23 2009-11-23 2009-11-23 2009-11-23 2009-11-23
> 2009-11-23 2009-11-16 2009-11-16 2009-11-16 2009-11-16
> [11] 2009-11-16 2009-11-16 2009-11-16 2009-11-09 2009-11-09 2009-11-09
> 2009-11-09 2009-11-09 2009-11-09 2009-11-09
> Levels: 2009-11-09 2009-11-16 2009-11-23
>
> I was a bit puzzled when I tried cut.dates as the function which
> throws a function not found error.
>
>
>>>
>>> Year<-year(data[,"Raised.Date"])
>>> Error: could not find function "year"
>>
>
>
> David Winsemius, MD
> Heritage Laboratories
> West Hartford, CT
>
> __
> 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.
>
>
--
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Sent from the R help mailing list archive at Nabble.com.
__
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] column of dates into time series
i have a column of dates in this format: data[,"Raised.Date"] <- as.Date(data[,"Raised.Date"], "%d/%m/%Y"); data[1:10,"Raised.Date"] [1] "2006-07-07" "2006-07-07" "2006-04-03" "2006-04-03" "2006-04-03" "2006-04-03" "2006-04-03" "2006-04-03" "2006-04-03" "2006-04-03" I can turn them into months like this... Month<-months(data[,"Raised.Date"]) Month[1:10] [1] "July" "July" "April" "April" "April" "April" "April" "April" "April" "April" But i also want to turn them into years (and also weeks later on), so tried this... Year<-year(data[,"Raised.Date"]) Error: could not find function "year" thanks. -- View this message in context: http://n4.nabble.com/column-of-dates-into-time-series-tp930699p930699.html Sent from the R help mailing list archive at Nabble.com. __ 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] Whats happening to the forum???
Im lost i want to post on the other forum...the address was something like... http://old.nabble.com/R ...to get help with using R but i kept getting redirected to this one (http://n4.nabble.com), and when i tried to post a querie it made me sign up so i thought the forum was changing or being updated or something like that. When i type in http://old.nabble.com/ then click I get redirected to... R http://n4.nabble.com/R-f789695.html ...?? David Winsemius wrote: > > > On Nov 28, 2009, at 12:26 PM, DispersionMap wrote: > >> >> Whats happening? everthings changing round here... > > Can you be any less vague? > >> plus alot less >> posts/users.. > > And perhaps offer some data to accomapny your inferences? > > http://dir.gmane.org/gmane.comp.lang.r.general > >> -- >> View this message in context: >> http://n4.nabble.com/Whats-happening-to-the-forum-tp913858p913858.html >> Sent from the R help mailing list archive at Nabble.com. >> >> __ >> 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 > Heritage Laboratories > West Hartford, CT > > __ > 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. > > -- View this message in context: http://n4.nabble.com/Whats-happening-to-the-forum-tp913858p919285.html Sent from the R help mailing list archive at Nabble.com. __ 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] Whats happening to the forum???
im confused, everytime i try to get to the old forum i get redirected here though??? i dont know why. Sharpie wrote: > > > DispersionMap wrote: >> >> Whats happening? everthings changing round here...plus alot less >> posts/users.. >> > > R-Help is a mailing list which is independent of Nabble. Nabble is only > one of many front-ends that provides a "forum-like" interface to the > mailing list. Therefore, the users of the R-Help mailing list probably > can't answer this question-- you should contact the Nabble administrators. > > Hope this helps! > > -Charlie > -- View this message in context: http://n4.nabble.com/Whats-happening-to-the-forum-tp913858p918167.html Sent from the R help mailing list archive at Nabble.com. __ 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] Whats happening to the forum???
Whats happening? everthings changing round here...plus alot less posts/users.. -- View this message in context: http://n4.nabble.com/Whats-happening-to-the-forum-tp913858p913858.html Sent from the R help mailing list archive at Nabble.com. __ 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] alternatives to mosiac plots and ?3D? mosiac plots
i had some great success with mosiacplots... http://stat.ethz.ch/R-manual/R-patched/library/graphics/html/mosaicplot.html http://stat.ethz.ch/R-manual/R-patched/library/graphics/html/mosaicplot.html ...does anyone know of any other hidden gems out there that allow you to examine the relationship among two or more categorical variables. Also is it possible to add a third dimension to a mosiac plot, as in adding a contour plot to it...if so how is it done? -- View this message in context: http://n4.nabble.com/alternatives-to-mosiac-plots-and-3D-mosiac-plots-tp865536p865536.html Sent from the R help mailing list archive at Nabble.com. __ 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.
