Re: [R] Result too long a vector?

2011-11-23 Thread Jess L
Hi, you can try close R and run R again for getting and saving another csv. Or if your max(x) is too big, try split into 4, or 5 or even more like: 1:(max(x)/4) and next run: (max(x)/4+1) : (max(x)/2) etc hope this helps, JL -- View this message in context: http://r.789695.n4.nabble.com/

[R] post the message

2011-11-23 Thread M Subbiah
When I fit a logistic regression with 5 predictors (all of them are coded) i get the standard error almost zero for the estimated coeffts. I request the members to offer  comments / suggestions / diagnostics? [[alternative HTML version deleted]] _

Re: [R] Frequency table

2011-11-23 Thread Jess L
Hi, I think you can try the function rep(). Example: # this means rep 1 once, 2 twice and 3 three times > rep(c(1,2,3), c(1,2,3)) [1] 1 2 2 3 3 3 # this means rep "A", "B", "C", until it reaches length of 10 > rep(c("A","B","C"), length.out = 10) [1] "A" "B" "C" "A" "B" "C" "A" "B" "C" "A" you

[R] AlgDesign - $D $A $Ge $Dea

2011-11-23 Thread 蓁蓁 李
Hi, I am wondering how I should interpreate the output of optFederov() in AlgDesign. Specially I want to know what is $D, $A, $Ge and $Dea, which one I can use as an efficiency to say how good the optimal design is. I only know when a orthogonal design comes, $D = 1. I red the pdf document

Re: [R] Looping and paste

2011-11-23 Thread markm0705
And thanks fo rthe pointer to the R introduction book as well On Thu, Nov 24, 2011 at 11:00 AM, Mark Murphy wrote: > Thank you > > > On Thu, Nov 24, 2011 at 7:31 AM, B77S [via R] < > ml-node+s789695n4102066...@n4.nabble.com> wrote: > >> out <- vector("list") >> Ylab <- for(i in 1:length(BndY)) >

Re: [R] Bar charts, frequencies known, intervals of varying width

2011-11-23 Thread Jim Lemon
On 11/24/2011 02:50 AM, scriptham2 wrote: Hi I would like to plot bar charts in a particular way. The intervals are not evenly distributed and are in a data frame column called size and the relative frequencies are in a second column called mass. Both size and mass are continuous ratio data to a

Re: [R] simple graph for economics

2011-11-23 Thread Jess L
hi, you may want to try the following, see whether you want this: plot(NULL, xlim = c(0, 10), ylim = c(0, 8), xaxt = "n", yaxt = "n", main = "The Demand Curve", xlab = "", ylab = "", bty = "n") lines(x = c(1, 8), y = c(1, 1)) lines(x = c(1, 1), y = c(1, 8)) lines(x = c(1, 7), y = c(7, 1)) li

Re: [R] Looping and paste

2011-11-23 Thread markm0705
Thank you On Thu, Nov 24, 2011 at 7:31 AM, B77S [via R] < ml-node+s789695n4102066...@n4.nabble.com> wrote: > out <- vector("list") > Ylab <- for(i in 1:length(BndY)) > { > out[i] <- paste(BndY[i]," to ",BndY[i],"mN") > } > > Ylab <- do.call(c, out) > > > > > > markm0705 wrote > Dear R helpers >

Re: [R] Adding units to levelplot's colorkey

2011-11-23 Thread Carlisle Thacker
Here is an example with what I've been able to manage for a vertical colorkey: library(lattice)# make levelplot available library(openair) # make drawOpenKey available # construct data x = 1:10 y = rep(x,rep(10,10)) x = rep(x,rep(10)) z = x+y # in centimeters # try work-around, at

Re: [R] A question about R image function

2011-11-23 Thread JeffND
Hi Sarah, Thanks a lot! You are right, my data is not over a regular grid cell locations. One advantage of image() is that it can produce continuous color change for the data value. When the data value is over a large range, this will make it more convenient. Thanks! Jeff -- View this message in

[R] da.norm function

2011-11-23 Thread Andrey A
Hello all I'm running da.norm function in R for climate data rngseed(1234567) theta1=da.norm(mydata, thetahat, steps=1000,showits=T) param1=getparam.norm(mydata,theta1) As I understand the 1000 steps represent the markov chain values. Is there a way to plot them? Something like plot(1:1000, para

Re: [R] Correlation matrix removing insignificant R values

2011-11-23 Thread R. Michael Weylandt
Looking over the code below, I think this patched version might return a better answer: spec.cor <- function(dat, r, ...) { x <- cor(dat, ...) x[upper.tri(x, TRUE)] <- NA i <- which(abs(x) >= r, arr.ind = TRUE) data.frame(V1 = rownames(x)[i[,1]], V2 = colnames(x)[i[,2]], Value = x[

Re: [R] Correlation matrix removing insignificant R values

2011-11-23 Thread R. Michael Weylandt
There have been two threads dealing with this in the last few weeks: please search the recent archives for those threads for a good discussion -- end result: Josh Wiley provided a useful little function to do so that I'll copy below. RSeek.org is a good place to do your searching. spec.cor <- func

Re: [R] how to stack a list of arrays

2011-11-23 Thread R. Michael Weylandt
Try this for the given data: you'll have to modify the group label trick a bit if row-numbers aren't even for each element of L, but it's not hard. L <- list(`0` = matrix(rnorm(6), ncol = 2), `1` = matrix(rnorm(6), ncol = 2), `2` = matrix(rnorm(6), ncol = 2)) # Generally it's bad form to use numbe

Re: [R] Looping and paste

2011-11-23 Thread R. Michael Weylandt
Try this instead: Ylab <- paste(BndY, BndY+50, "mN") Michael On Wed, Nov 23, 2011 at 5:26 PM, markm0705 wrote: > Dear R helpers > > I'm trying to make up some labels for plot from this vector > > BndY<-seq(from = 18900,to= 19700, by = 50) > > using > > Ylab<-for(i in BndY) {c((paste(i," to ",i+

Re: [R] Frequency table

2011-11-23 Thread R. Michael Weylandt
I think something like this is what you are looking for, but to be honest, I don't quite understand what you are looking for: can you actually write out the desired result: tapply(df$x, df$Var, table) where df is the name of your data. df <- structure(list(Var = c(201L, 201L, 201L, 201L, 202L, 2

Re: [R] R for Windows - 5 stars award on Windows 7 Download

2011-11-23 Thread David Winsemius
On Nov 23, 2011, at 8:23 PM, Duncan Murdoch wrote: On 11-11-23 4:30 PM, Windows 7 Download wrote: Dear R Development Core Team R for Windows has been reviewed by Windows 7 Download and got 5 stars award: snipped Draw attention to your product by making it visible on website that is use

Re: [R] simple graph for economics

2011-11-23 Thread David Winsemius
On Nov 23, 2011, at 3:28 PM, avanz wrote: How do I graph something simple like http://sapedia.gosaints.org/images/1/13/Consumer_Surplus.gif ?plot ?polygon with no numbers? It may depend on what you mean by that last bit. -- View this message in context: http://r.789695.n4.nabbl

Re: [R] what is wrong with this dataset?

2011-11-23 Thread Carl Witthoft
As the Kroger Data Munger Guru would say, "What is the problem you are trying to solve?" The datasets look just fine from a structural point of view. What do you want to do and what is wrong with the results you get? From: Kaiyin Zhong Date: Thu, 24 Nov 2011 09:39:20 +0800 > d = data.fr

Re: [R] character substitution within a variable name

2011-11-23 Thread Rolf Turner
On 24/11/11 09:23, matric wrote: Thanks Duncan, I knew it. But if I use the complete variable name, I'll have far too many arguments for my function Did you understand Duncan's post? He told you that df[,var] would work, whereas df$var doesn't. So he gave you a solution to the probl

[R] what is wrong with this dataset?

2011-11-23 Thread Kaiyin Zhong
> d = data.frame(gender=rep(c('f','m'), 5), pos=rep(c('worker', 'manager', 'speaker', 'sales', 'investor'), 2), lot1=rnorm(10), lot2=rnorm(10)) > d gender pos lot1 lot2 1 f worker 1.1035316 0.8710510 2 m manager -0.4824027 -0.2595865 3 f speaker 0.893358

Re: [R] R for Windows - 5 stars award on Windows 7 Download

2011-11-23 Thread Mark Leeds
hi duncan: I ( possibly mistakenly ) let that through the mailman by clicking on accept so I don't know if it's just spam or real. my bad if i shouldn't have. mark On Wed, Nov 23, 2011 at 8:23 PM, Duncan Murdoch wrote: > On 11-11-23 4:30 PM, Windows 7 Download wrote: > >> Dear R Development

Re: [R] R for Windows - 5 stars award on Windows 7 Download

2011-11-23 Thread Duncan Murdoch
On 11-11-23 4:30 PM, Windows 7 Download wrote: Dear R Development Core Team R for Windows has been reviewed by Windows 7 Download and got 5 stars award: http://www.windows7download.com/win7-r-for-windows/snvrckjh.html Draw attention to your product by making it visible on website that is used

Re: [R] character substitution within a variable name

2011-11-23 Thread Duncan Murdoch
On 11-11-23 3:23 PM, matric wrote: Thanks Duncan, I knew it. But if I use the complete variable name, I'll have far too many arguments for my function Maybe a new design is in order. Duncan Murdoch On 23 November 2011 20:59, Duncan Murdoch-2 [via R] wrote: On 23/11/2011 2:29 PM, matr

[R] length of 'dimnames' [2] not equal to array extent

2011-11-23 Thread Fyrefly
Hello all, I'm trying to use the user-created multinomRob to make some models for my data. While documentation for that function is fine and I think I'm using it correctly, I'm getting the following error when I try to use my lists of variables. data <- read.csv("data.csv", header=FALSE) subj1 <

[R] Looping and paste

2011-11-23 Thread markm0705
Dear R helpers I'm trying to make up some labels for plot from this vector BndY<-seq(from = 18900,to= 19700, by = 50) using Ylab<-for(i in BndY) {c((paste(i," to ",i+50,"mN")))} but the vector created is NULL However if i use for(i in BndY) {print(c(paste(i," to ",i+50,"mN")))} I can see th

[R] how to stack a list of arrays

2011-11-23 Thread Ernest Adrogué
Hello, I have this list of 2-d arrays: $`0` kd [1,] 0.2011962 4.019537 [2,] 0.2020706 5.722719 [3,] 0.2029451 7.959612 $`1` kd [1,] 0.3148325 2.606903 [2,] 0.3160287 3.806665 [3,] 0.3172249 5.419222 $`2` kd [1,] 0.2332536 4.949390 [

[R] Frequency table

2011-11-23 Thread reynaldo_ns
Hello everybody I am new on R I have some problem when i try to obtain frequency table which script do I need to write in R in order to obtain the frecuency of a value per repetition You could see my example Var. rep x I need to obtain these 2011

Re: [R] character substitution within a variable name

2011-11-23 Thread matric
Thanks Duncan, I knew it. But if I use the complete variable name, I'll have far too many arguments for my function On 23 November 2011 20:59, Duncan Murdoch-2 [via R] wrote: > On 23/11/2011 2:29 PM, matric wrote: >> Hi, >> I'd like to create a function that accepts as arguments a string that

[R] simple graph for economics

2011-11-23 Thread avanz
How do I graph something simple like http://sapedia.gosaints.org/images/1/13/Consumer_Surplus.gif with no numbers? -- View this message in context: http://r.789695.n4.nabble.com/simple-graph-for-economics-tp4101460p4101460.html Sent from the R help mailing list archive at Nabble.com. ___

Re: [R] Looping and paste

2011-11-23 Thread Bert Gunter
... and you can of course do the assignment: Bndy <- paste (BndY,"to",50+seq_len(BndY), "mN", sep = " ") "An Introduction to R" tells you about such fundamentals and should be a first read for anyone learning R. --- Bert On Wed, Nov 23, 2011 at 4:10 PM, Bert Gunter wrote: > Don't do this!  pa

Re: [R] Looping and paste

2011-11-23 Thread Bert Gunter
Don't do this! paste() is vectorized. paste (BndY,"to",50+seq_len(BndY), "mN", sep = " ") Cheers, Bert On Wed, Nov 23, 2011 at 3:31 PM, B77S wrote: > out <- vector("list") > Ylab <- for(i in 1:length(BndY)) > { > out[i] <- paste(BndY[i]," to ",BndY[i],"mN") > } > > Ylab <- do.call(c, out) > >

Re: [R] Looping and paste

2011-11-23 Thread B77S
out <- vector("list") Ylab <- for(i in 1:length(BndY)) { out[i] <- paste(BndY[i]," to ",BndY[i],"mN") } Ylab <- do.call(c, out) markm0705 wrote > > Dear R helpers > > I'm trying to make up some labels for plot from this vector > > BndY<-seq(from = 18900,to= 19700, by = 50) > > using >

Re: [R] x, y for point of intersection

2011-11-23 Thread MacQueen, Don
The function crossing.psp() in the spatstat package might be of use. Here's an excerpt from its help page: crossing.psp package:spatstat R Documentation Crossing Points of Two Line Segment PatternsDescription: Finds any crossing points between two line segment patterns. Us

Re: [R] zeros to NA's - faster

2011-11-23 Thread Dennis Murphy
Matrix multiplication, maybe? > all_data %*% iu a b c [1,] 1 4 0 [2,] 2 5 0 [3,] 3 6 0 I have no idea if this is a general solution or not, but it works in this case. If you need something else, perhaps a more realistic example would help. Dennis On Wed, Nov 23, 2011 at 11:41 AM, Ben quant

Re: [R] lines and points in xyplot()

2011-11-23 Thread Dennis Murphy
Hi: Try this: library('lattice') xyplot(y ~ x, type = c('g', 'p'), panel = function(x, y, ...){ panel.xyplot(x, y, ...) panel.lines(x, predict(fm), col = 'black', lwd = 2) } ) HTH, Dennis On Wed, Nov 23, 2011 at 9:18

Re: [R] How to explain interaction variable in Linear regression?

2011-11-23 Thread Weidong Gu
Hi, The significant interaction between A (continous) and B (categorical) means that the slopes of Y in relation to A are different for classes of B. Since your categorical B was binary, the default reference class (B2) was intecept, and the slope of A for (B2) was 0.0017799. However, the slope of

Re: [R] avoiding the sample in built function

2011-11-23 Thread David Winsemius
On Nov 23, 2011, at 2:56 PM, Kevin E. Thorpe wrote: On 11/23/2011 02:01 PM, sarah44 wrote: Dear all, I am currently working on a function in which I would like to avoid using the command sample(). Therefore, I am now trying to make a for loop that does the same thing as the in built fu

Re: [R] How to change Record "repeated"

2011-11-23 Thread R. Michael Weylandt
I don't know what "Calc" is, but I think the duplicated() command will work for what you need. Michael On Wed, Nov 23, 2011 at 1:37 PM, lunarossa wrote: > I have a great dataset like this: > > name      colour   ... ... ... > jerry         red > pippo        red > tom          red > tom        y

Re: [R] character substitution within a variable name

2011-11-23 Thread Duncan Murdoch
On 23/11/2011 2:29 PM, matric wrote: Hi, I'd like to create a function that accepts as arguments a string that is to be substituted within a variable name. For instance, suppose I have a data frame df: df<-data.frame(x_narrow=c(rnorm(100,0,1)),x_wide=c(rnorm(100,0,10))) What I have in mind is s

Re: [R] avoiding the sample in built function

2011-11-23 Thread Kevin E. Thorpe
On 11/23/2011 02:01 PM, sarah44 wrote: Dear all, I am currently working on a function in which I would like to avoid using the command sample(). Therefore, I am now trying to make a for loop that does the same thing as the in built function sample does: Rearranging the items of a object randoml

Re: [R] avoiding the sample in built function

2011-11-23 Thread R. Michael Weylandt
Why would you want to avoid sample()? It's a perfectly wonderful function. Michael On Wed, Nov 23, 2011 at 2:01 PM, sarah44 wrote: > Dear all, > > I am currently working on a function in which I would like to avoid using > the command sample(). > > Therefore, I am now trying to make a for loop t

[R] Density over time intervals

2011-11-23 Thread Willi Richert
Hello R community, I have recorded online/offline timestamps per user that looks like this: username,online_time,offline_time a,2011-11-01 16:16:56.692572+01,2011-11-01 21:06:16.388903+01 a,2011-11-01 21:07:14.204367+01,2011-11-01 21:34:21.47081+01 a,2011-11-01 21:38:09.501356+01,2011-11-01 21:53

[R] How to change Record "repeated"

2011-11-23 Thread lunarossa
I have a great dataset like this: name      colour   ... ... ... jerry         red pippo        red tom          red tom        yellow tom        green jessie     orange jessie      red bill          yellow kate       red henry      green .. .. I want to find out, in this great dat

[R] character substitution within a variable name

2011-11-23 Thread matric
Hi, I'd like to create a function that accepts as arguments a string that is to be substituted within a variable name. For instance, suppose I have a data frame df: df<-data.frame(x_narrow=c(rnorm(100,0,1)),x_wide=c(rnorm(100,0,10))) What I have in mind is something like: f <- function(string){

Re: [R] Splitting row in function of time

2011-11-23 Thread PEL
Turns out it was really easy since your lines converted my data in POSIXct. Thanks again for your time. -- View this message in context: http://r.789695.n4.nabble.com/Splitting-row-in-function-of-time-tp4077622p4101192.html Sent from the R help mailing list archive at Nabble.com. _

[R] avoiding the sample in built function

2011-11-23 Thread sarah44
Dear all, I am currently working on a function in which I would like to avoid using the command sample(). Therefore, I am now trying to make a for loop that does the same thing as the in built function sample does: Rearranging the items of a object randomly. So, the output I want to you get is

Re: [R] zeros to NA's - faster

2011-11-23 Thread Jorge I Velez
Hi Ben, Try all_data[, colSums(iu) == 0] <- NA all_data HTH, Jorge.- On Wed, Nov 23, 2011 at 2:41 PM, Ben quant <> wrote: > Hello, > > Is there a faster way to do this? Basically, I'd like to NA all values in > all_data if there are no 1's in the same column of the other matrix, iu. > Put ano

[R] zeros to NA's - faster

2011-11-23 Thread Ben quant
Hello, Is there a faster way to do this? Basically, I'd like to NA all values in all_data if there are no 1's in the same column of the other matrix, iu. Put another way, I want to replace values in the all_data columns if values in the same column in iu are all 0. This is pretty slow for me, but

Re: [R] CovSde F. sources?

2011-11-23 Thread R. Michael Weylandt
It's the first subroutine defined in ds11.f Hope this helps, Michael On Wed, Nov 23, 2011 at 11:37 AM, kv wrote: > Dear all, > > Would anyone know where is the file rlds.f called > by rrcov::CovSde ? I can't find it in the sources, > > Thanks in advance, > > -- > View this message in context:

Re: [R] R-latex syntax highlighting?

2011-11-23 Thread Yihui Xie
Thanks, Mark. These pages are kind of outdated. I guess I should be able to make the materials in these blog posts into LyX 2.0.3. If anybody is interested in testing, please contact me offline. Regards, Yihui -- Yihui Xie Phone: 515-294-2465 Web: http://yihui.name Department of Statistics, Iowa

Re: [R] How to increase precision to handle very low P-values

2011-11-23 Thread Duncan Murdoch
On 23/11/2011 11:16 AM, alonso_canada wrote: Hello, Rlisters I have to compute p-values that are on the tail of the distribution, P-values< 10^-20. However, my current implementations enable one to estimate P-values up to 10^-12, or so. A typical example is found below, where t is my critical

[R] Vegan: Diversity Plot, label points

2011-11-23 Thread Alejo C.S.
Dear List, I can'f figure how to add point labels in the next plot (example from ?taxondive help page): library(vegan) data(dune) data(dune.taxon) taxdis <- taxa2dist(dune.taxon, varstep=TRUE) mod <- taxondive(dune, taxdis) plot(mod) The points in this plot are diversity values of single sites,

Re: [R] generate data

2011-11-23 Thread R. Michael Weylandt
Type help.start() in your terminal and read the provided introductory materials. Michael On Nov 23, 2011, at 1:51 PM, Assieh Rashidi wrote: > > > Hi everyone, > I want to generate data by using mean, min, max. Is it�possible that i can > write R code? > How�can i do it? > thanks, > R.N >

[R] generate data

2011-11-23 Thread Assieh Rashidi
Hi everyone, I want to generate data by using mean, min, max. Is it possible that i can write R code? How can i do it? thanks, R.N [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/

Re: [R] SPSS F-test on change in R square between hierarchical models

2011-11-23 Thread Bert Gunter
Probably ?anova ?add1 ?drop1 are what you're looking for. -- Bert On Wed, Nov 23, 2011 at 6:07 AM, Christopher Desjardins wrote: > Hi, > > I am wondering if anyone knows how to perform an F-test on the change in R > square between hierarchical models in R? SPSS provides this information and >

[R] How to explain interaction variable in Linear regression?

2011-11-23 Thread Chen Xiu
Hello everyone, Recently, I faced a problem on explanatory of *Interaction variable* in Linear Regression, could anyone give me some help on how to explain that? the response variable Y is significantly correlated with *Interaction variable X* which is consisted of Continuous predictor A and Cate

Re: [R] lines and points in xyplot()

2011-11-23 Thread Deepayan Sarkar
On Wed, Nov 23, 2011 at 10:48 PM, Doran, Harold wrote: > Given the following data, I want a scatterplot with the data points and the > predictions from the regression. > > Sigma <- matrix(c(1,.6,1,.6), 2) > mu <- c(0,0) > dat <- mvrnorm(5000, mu, Sigma) > > x <- dat[,1] * 50 + 200 > y <- dat[,2]

Re: [R] Bar charts, frequencies known, intervals of varying width

2011-11-23 Thread Richard M. Heiberger
Stewart, I am replying to the graphical part of your query. ## This was constructed with ## dump("scriptham2","") ## sso it can be copied directly from the email into an R session. scriptham2 <- structure(list(size = c(2500, 2000, 1700, 1400, 1000, 800, 600, 300, 180, 100), mass = c(0, 0.

[R] lines and points in xyplot()

2011-11-23 Thread Doran, Harold
Given the following data, I want a scatterplot with the data points and the predictions from the regression. Sigma <- matrix(c(1,.6,1,.6), 2) mu <- c(0,0) dat <- mvrnorm(5000, mu, Sigma) x <- dat[,1] * 50 + 200 y <- dat[,2] * 50 + 200 fm <- lm(y ~ x) ### This gives the regression line, but not

Re: [R] memory allocation in R

2011-11-23 Thread Mehmet Suzen
You may want to enable garbage collection on gctorture(on = TRUE) see: ?gctorture ?gcinfo ?object.size >-Original Message- >From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] >On Behalf Of Marc Jekel >Sent: 23 November 2011 15:42 >To: R-help@r-project.org

Re: [R] Scatter plot - using colour to group points?

2011-11-23 Thread Ian Robertson
Hello all, Yesterday I wrote Michael Weylandt to ask for some help in understanding a line of code he used responding to SarahH's query about controlling colours in scatter plots. He wrote an excellent explanation that deserves to be shared here. Below I include the code I wrote while experim

Re: [R] How to extract particular words from various files

2011-11-23 Thread jim holtman
try this: if line locations are not fixed, then use grepl to find the matching line - > x <- readLines(textConnection("# using minimal fraction of valid points 30.00 + # tas [K] from bcc-csm1-1 model output prepared for CMIP5 RCP8.5 + # cutting out region lon=0.000 360.000, lat= -90.000 9

Re: [R] sum row and col

2011-11-23 Thread J Toll
On Wed, Nov 23, 2011 at 10:17 AM, aa99 wrote: >  hey ; > > i would like to sum the following table by row and col. Appreciate your > help. ?rowSums ?colSums HTH James __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help P

[R] CovSde F. sources?

2011-11-23 Thread kv
Dear all, Would anyone know where is the file rlds.f called by rrcov::CovSde ? I can't find it in the sources, Thanks in advance, -- View this message in context: http://r.789695.n4.nabble.com/CovSde-F-sources-tp4100374p4100374.html Sent from the R help mailing list archive at Nabble.com. ___

Re: [R] Splitting row in function of time

2011-11-23 Thread PEL
Thank you for the quick and precise answer. I am sorry for the very slow reply. I've been really busy lately. The lines you sent me work pretty well although my graphs still seem to consider periods that end with 00:00:00 as part of another day, probably because of the date. I'm currently trying

Re: [R] Continuasly Compunded Returns with quantmod-data

2011-11-23 Thread barb
many thanks Michael, that works nice! and Sry. I do read a lot of helme-files, but just don´t always get it. -- View this message in context: http://r.789695.n4.nabble.com/Continuously-compounded-Returns-with-quantmod-data-tp4090014p4100141.html Sent from the R help mailing list archive at Nabb

[R] Density over time intervals

2011-11-23 Thread Willi Richert
Hi, I have recorded online/offline timestamps per user that looks like this: username,online_time,offline_time a,2011-11-01 16:16:56.692572+01,2011-11-01 21:06:16.388903+01 a,2011-11-01 21:07:14.204367+01,2011-11-01 21:34:21.47081+01 a,2011-11-01 21:38:09.501356+01,2011-11-01 21:53:45.272321+

Re: [R] R-latex syntax highlighting?

2011-11-23 Thread Mark Lamias
I use pgfSweave so that I can embed R code and output in LaTeX; pgfSweave depends on the formatR package to format the code, and the highlight package to highlight R code; graphics are based on tikzDevice, which has better quality than R's PDF or postscript output, in my opinion. Check out the de

Re: [R] lme contrast Error in `$<-.data.frame`(`*tmp*`, "df", value = numeric(0)) :

2011-11-23 Thread rahulprabhuh
I had the same problem while doing classification using rpart. The mistake I had made was that the column names in the data frames had spaces and other special characters. I got the output when I changed this. Hope this helps. -- View this message in context: http://r.789695.n4.nabble.com/lme-con

[R] Intervention Analysis

2011-11-23 Thread Wildred Asister
Hi R users, Do you have an idea on how to use R language in Time Series with intervention? I'm very confused in how to use it for my undergrad thesis "Intervention Analysis of Fisheries Production". Hoping for your response. Thanks, Wil [[alternative HTML version deleted]] _

[R] memory allocation in R

2011-11-23 Thread Marc Jekel
Dear R community, I was observing a memory issue in R (latest 64bit R version running on a win 7 64 bit system) that made me curious. I kept track of the memory f my PC allocated to R to calculate + keep several objects in the workspace. If I then save the workspace, close R, and open the wo

Re: [R] how to keep row name if there is only one row selected from a data frame

2011-11-23 Thread agent dunham
I've manged this way: df2 <- df1[-match(784, row.names(df1)), ] Isn't there any other way?? How can I retrieve/delete three rows with the same command line?u...@host.com -- View this message in context: http://r.789695.n4.nabble.com/how-to-keep-row-name-if-there-is-only-one-row-selected-from

[R] glmulti fails because of rJava

2011-11-23 Thread Toby Marthews
Dear R, The glmulti package no longer loads through the library() command, apparently because of a problem with rJava. I have today reinstalled R from scratch (updated to v2.14.0) and reinstalled all packages from scratch and updated them all too. The problem is the same as I found on v2.13.2.

[R] SPSS F-test on change in R square between hierarchical models

2011-11-23 Thread Christopher Desjardins
Hi, I am wondering if anyone knows how to perform an F-test on the change in R square between hierarchical models in R? SPSS provides this information and a researcher that I am working with is interested in getting this information. Alternatively, if someone knows how I can calculate the test sta

Re: [R] glht for lme object with significant interaction term

2011-11-23 Thread Mark Difford
Nov 23, 2011 at 1:27am Andreas wrote: > I would like to do multiple comparisons for treatment levels within day > (i.e. across treatments > for each day in turn) Andreas, The following does what you want. To see how/why it works, look at the vignette to package multcomp, where there is an exampl

[R] How to extract particular words from various files

2011-11-23 Thread ucakmde
Dear R-help guys, I am trying to extract two particular words from different files but I am struggling with the code. The first theree lines of each folder are as follows: # using minimal fraction of valid points 30.00 # tas [K] from bcc-csm1-1 model output prepared for CMIP5 RCP8.5 # cutting ou

[R] Correlation matrix removing insignificant R values

2011-11-23 Thread mgranlie
Hello. I have a large dataset with sales pr month for 56 products with 10 months and i have tried to see how the sales are correlated using cor() This has given me a 56X56 matrix with the R value for each product pair. Most of these correlations are insignificant, and i want only to retain the i

[R] How to increase precision to handle very low P-values

2011-11-23 Thread alonso_canada
Hello, Rlisters I have to compute p-values that are on the tail of the distribution, P-values < 10^-20. However, my current implementations enable one to estimate P-values up to 10^-12, or so. A typical example is found below, where t is my critical value. ### example - code adapted fro

Re: [R] Adding units to levelplot's colorkey

2011-11-23 Thread Carlisle Thacker
Thanks. On 11/23/11 2:20 AM, Deepayan Sarkar wrote: On Tue, Nov 15, 2011 at 6:53 PM, Carlisle Thacker wrote: Sorry that I was not clear. I was asking how to add annotation to levelplot's colorkey, not the levelplot itself. The only entry I can find from the help pages is via its labels. Go

Re: [R] REad bitmap files

2011-11-23 Thread Alaios
I want to confirm that it worked (took some time though to find the needed libraries!) now I get from the readGal the following struct > str(store) Formal class 'SpatialGridDataFrame' [package "sp"] with 6 slots   ..@ data   :'data.frame': 65536 obs. of  1 variable:   .. ..$ band1: int [1:655

[R] sum row and col

2011-11-23 Thread aa99
hey ; i would like to sum the following table by row and col. Appreciate your help. BrandName Segment Retail QSlod Oral B Whitening 10 2 Colgate Sensitive 20 4 Colgate Sensitive 30 6 Oral B Whitening 40 8 Close UpW

Re: [R] evaluation question

2011-11-23 Thread peter dalgaard
On Nov 23, 2011, at 00:24 , Rolf Turner wrote: >> >> library(fortunes) >> fortune("parse()") > The fortune notwithstanding I find this *specific* use of parse() to be > very, uh, useful! :-) The fortune does say "usually", and there certainly are exceptions, for instance the use in Rcmdr where

Re: [R] Is there an easier way to iterate over multiple data frames in R?

2011-11-23 Thread Mark Lamias
Depending upon what you are trying to do with them, how about storing the dataframes as a multidimensional array of size 4x3x3 in the case below.  After that  you can use the sapply function with the appropriate MARGIN argument specified: For example mydfs <- as.array(list(df1, df2, df3)) sa

Re: [R] Is there an easier way to iterate over multiple data frames in R?

2011-11-23 Thread Jeff Newmiller
Whenever similar objects are to be handled with similar code, having the data frames stored in lists or even as one big data frame is preferred. If you can load them as such, half the complexity is addressed right there. The for loop processing is usually wrapped up using base apply functions or

Re: [R] tuning random forest. An unexpected result

2011-11-23 Thread Liaw, Andy
Gianni, You should not "tune" ntree in cross-validation or other validation methods, and especially should not be using OOB MSE to do so. 1. At ntree=1, you are using only about 36% of the data to assess the performance of a single random tree. This number can vary wildly. I'd say don't both

[R] Bar charts, frequencies known, intervals of varying width

2011-11-23 Thread scriptham2
Hi I would like to plot bar charts in a particular way. The intervals are not evenly distributed and are in a data frame column called size and the relative frequencies are in a second column called mass. Both size and mass are continuous ratio data to all intents and purposes. The data actually r

Re: [R] Losing custom attributes

2011-11-23 Thread David Winsemius
On Nov 23, 2011, at 10:19 AM, Smart Guy wrote: Hi Eric, Thanks for the reply. Actually, I am looking for a way so that my custom attributes are not lost after the row insert operation. It can be rbind() or some other way. dfm <- dfm[c(1,1:nrow(dfm), ] dfm[ 1, ] <- c(age=16, weight= 4

[R] Error using coeftest() with a heteroskedasticity-consistent estimation of the covar.

2011-11-23 Thread ManuelS
Hey I am trying to run /coeftest()/ using a heteroskedasticity-consistent estimation of the covariance matrix and i get this error: # packages >library(lmtest) >library(sandwich) #test > coeftest(*GSm_inc.pool*, vcov = vcovHC(*GSm_inc.pool*, method="arellano", > type="HC3")) /Fehler in 1 - diagh

Re: [R] On-demand importing of a package

2011-11-23 Thread Gábor Csárdi
Just for the records, the solution was to make the matrix 'dgCmatrix" instead of 'dsCmatrix', 'dgCmatrix' works and 'dsCmatrix' does not. I suspect that this has to do something with the S4 class hierarchy in Matrix, but I am not sure. This is a quite ugly workaround, since it depends on some inte

[R] Is there an easier way to iterate over multiple data frames in R?

2011-11-23 Thread Kaiyin Zhong
> for (d in paste('df', 1:3, sep='')) { + assign(d, as.data.frame(replicate(3, rnorm(4 + } > dats = list(df1,df2,df3) > for (i in 1:length(dats)) { + names(dats[[i]]) = c('w', 'l', 'h') + } > dats [[1]] w l h 1 1.24319239 -0.05543649 0.05409178 2 0.05124331

Re: [R] making scatterplot easier to read

2011-11-23 Thread David Winsemius
On Nov 22, 2011, at 5:13 PM, David Winsemius wrote: On Nov 22, 2011, at 4:58 PM, Szymek Drobniak wrote: Dear R users, do you know an easy way (other than star plot) of making several points laying one over another visible? Is it any simple way of increasing such "multipoint" symbols - o

Re: [R] Losing custom attributes

2011-11-23 Thread Smart Guy
Hi Eric, Thanks for the reply. Actually, I am looking for a way so that my custom attributes are not lost after the row insert operation. It can be rbind() or some other way. Regards, SG On 23 November 2011 18:07, Eric Lecoutre wrote: > > I guess rbind takes attributes from the first dat

Re: [R] Varma models in the dse package

2011-11-23 Thread Paul Gilbert
Tanja Your TSdata object dfdata as printed in your email looks a bit funny. It should be a list with a matrix of numeric data in the element named output: > dfdata <- TSdata(output=matrix(rnorm(200), 100,2)) > dfdata output data: Series 1 Series 2 10.01905979 -0.096441240 20.

Re: [R] Measure of separation for survival data

2011-11-23 Thread Martyn Byng
Hi, I've not come across "Royston's measure of prognostic separation" before, so I might be completely off the mark, but it is likely that by "invnormal" it is meant the inverse of a standard normal distribution, i.e. one with a mean of 0 and standard deviation of 1. Which is what qnorm gives by d

Re: [R] how to keep row name if there is only one row selected from a data frame

2011-11-23 Thread R. Michael Weylandt
You probably mean this: df1[!(rownames(df1) %in% c("2098","2970","784")), ] Remember, row names are strings: if you give R an integer, it will interpret it as a row index. Michael On Wed, Nov 23, 2011 at 5:37 AM, agent dunham wrote: > Dear Community, > > I'm having a similar problem. I'm worki

[R] Measure of separation for survival data

2011-11-23 Thread Bonnett, Laura
Dear all, I am using R 2.9.2 on Windows XP. I am undertaking a simulation study to consider methods of external validation in the context of missing covariates in the validation data set. I would like to use Royston's measure of prognostic separation as a method of external validation. Alth

[R] x, y for point of intersection

2011-11-23 Thread Monica Pisica
Hi everybody, Thank you so much for your answers. The easiest and most straight forward solution is using the function segm_dist from package "pracma" as suggested by Hans Borchers. Thanks again and Happy Thanksgiving for those who celebrate! Monica Message: 99

[R] R-latex syntax highlighting?

2011-11-23 Thread Giovanni Azua
Hello, Can anyone provide or point me to a good setup for the listings latex package that would produce nice R-syntax highlighting? I am using an example I found in internet for setting up listings like this: \lstset{ language=R, basicstyle=\scriptsize\ttfamily, commentstyle=\ttfamily\color{gray

Re: [R] Discarding a matrix based on the rowSums value

2011-11-23 Thread R. Michael Weylandt
If it's working you are just getting lucky: this is the syntax you want/need: if(any(rowSums(m) == N.1s)) flag <- TRUE You test each of the rowSums and then you check if any of the results are true. That warning came up because R has a way to convert numbers to T/F values but it hesitates bec

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