Re: [R] permutation of vectors (1 or 0)

On 12/20/2012 02:13 PM, arun wrote: > library(gtools) > permutations(2,10,0:1,repeats.allowed=TRUE) This does what I need, but if I increase a number of permutations (59 instead of 10), then I get an error. Error: cannot allocate vector of size 1.5 Gb Is there a smart way of increasing the maxim

Re: [R] permutation of vectors (1 or 0)

On 12/20/2012 02:13 PM, arun wrote: > library(gtools) > permutations(2,10,0:1,repeats.allowed=TRUE) Thanks, this is exactly what I need. Regards, Olga __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the

Re: [R] vegan and sweave using xtable

Thanks Ista, Very instructive and works like a charm! Cheers! Olga __ 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, mi

[R] vegan and sweave using xtable

Dear all, Using: library(vegan) data(BCI) mod <- radfit(BCI[1,]) mod RAD models, family poisson No. of species 93, total abundance 448 par1 par2 par3Deviance AIC BIC Null 39.5261 315.4362 315.4362 Preemption 0.042797

Re: [R] lower triangle of the correlation matrix with xtable

if I try as.dist I get the following error: On Thu, 2010-09-02 at 09:57 -0400, Sarah Goslee wrote: > > mydata<-data.frame(x1=c(1,4,6),x2=c(3,1,2),x3=c(2,1,3)) > > as.dist(cor(mydata)) >x1 x2 > x2 -0.5960396 > x3 0.3973597 0.500 print(xtable(as.dist(cor(mydata)),digits=3)

[R] lower triangle of the correlation matrix with xtable

Dear all, mydata<-data.frame(x1=c(1,4,6),x2=c(3,1,2),x3=c(2,1,3)) cor(mydata) x1 x2x3 x1 1.000 -0.5960396 0.3973597 x2 -0.5960396 1.000 0.500 x3 0.3973597 0.500 1.000 I wonder if it is possible to fill only lower triangle of this correlation matr

Re: [R] standardize columns selectively within a dataframe

On Wed, 2010-09-01 at 12:42 -0400, David Winsemius wrote: > I suspect you might have tried (df-mean(df))/sd(x) and gotten > unsatisfactory results; I know I did. yes, indeed! a few times, but why is that? > If you had really wanted to > persist and do it from first principles, so to speak,

Re: [R] standardize columns selectively within a dataframe

Thanks! It is exactly what I was looking for! Cheers Olga __ 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

[R] standardize columns selectively within a dataframe

Dear all, I have a dataframe: df<-dataframe(a=c(1,2,3),b=c(4,5,6),c=c(7,8,9),d=c(10,11,12)) I want to obtain a new dataframe with columns a and b being standardized ((x-mean(x))/sd(x)); the other two columns (c,d) I want to leave unchanged. What is the best way to achieve this? I have been try

Re: [R] frequency table for a list matching some conditions

Thanks Dimitris, It works nicely! Regards, Olga On Thu, 2010-08-26 at 11:55 +0200, Dimitris Rizopoulos wrote: > one way is the following: > > mylist <- list(x1 = c("A","A","A","B","C","Z","Y"), > x2 = c("D","D","E","E","F","Z","X"), > x3 = c("A","A","A","B","Y","Z")) > newlist <- c("

[R] frequency table for a list matching some conditions

Dear all, I have a list that contains 3 sublists( x1, x2, x3) mylist<-list(x1=c("A","A","A","B","C","Z","Y"),x2=c("D","D","E","E","F","Z","X"),x3=c("A","A","A","B","Y","Z")) mylist $x1 [1] "A" "A" "A" "B" "C" "Z" "Y" $x2 [1] "D" "D" "E" "E" "F" "Z" "X" $x3 [1] "A" "A" "A" "B" "Y" "Z" I also ha

Re: [R] try-error within for loop

Wu Gong wrote: > So, try() inside loop should work. Like > > for () { > if (class(try(...,silent=T))=="try-error") result[[i]] <- NA > ... > } Thanks a lot, it worked for me! Cheers Olga __ R-help@r-project.org mailing list https://stat.ethz

Re: [R] PageUp/Down in gnome-terminal

On Thu, 2010-08-05 at 10:59 +0100, Liviu Andronic wrote: > On Thu, 05 Aug 2010 11:13:00 +0200 > Olga Lyashevska wrote: > > I do not have any desktop environment (running R on a server), can I > > still try xfce? > > > I am not very sure. If you are running gnome-te

[R] try-error within for loop

Dear all, I run a loop wrapped in try(), and for each of the rows where "try-error" is true I want to fill that row with NA (at the moment it is omitted). So I would expect to get a dataframe with 1000 rows some of which would be empty, but instead I get a dataframe with 995 rows. In this case mi

Re: [R] PageUp/Down in gnome-terminal

Thanks Liviu, On Thu, 2010-08-05 at 09:51 +0100, Liviu Andronic wrote: > On Thu, 05 Aug 2010 08:56:30 +0200 > Olga Lyashevska wrote: > > I am using gnome-terminal to run R, and I noticed that standard > > PageUp/Down do not work but they do work for other programs within the

[R] PageUp/Down in gnome-terminal

Dear all, I am using gnome-terminal to run R, and I noticed that standard PageUp/Down do not work but they do work for other programs within the same terminal window (e.g. irssi). Scroll bar does not work either. I run R using GNU-screen, but it doesn't seem to make any difference. Many thanks O

Re: [R] multiple R sessions from one working directory using GNU screen

iginal Message- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] > On Behalf Of Steven McKinney > Sent: 03 August 2010 21:05 > To: Olga Lyashevska; r-help@r-project.org > Subject: Re: [R] multiple R sessions from one working directory using > GNU sc

Re: [R] multiple R sessions from one working directory using GNU screen

uster computing with R might help you figure out > strategies to share bits of data and information across multiple R sessions. > > HTH > > > Steven McKinney > > From: r-help-boun...@r-project.org [r-help-boun...@r-project.org] On Behalf &

[R] multiple R sessions from one working directory using GNU screen

Dear all, I am using GNU screen to run multiple R sessions from one working directory in order to split task, however I noticed that dataset is not synchronized e.g. if I have two sessions R1 and R2, and I remove an object from R1, R2 doesn't change as expected or change at random. I have tried to

[R] jtest to test significance of R2 change

Hello, I want to compare 6 non-nested models lm(Y1~X11),lm(Y1~X12),lm(Y1~X13),lm(Y1~X14),lm(Y1~X15),lm(Y1~X16) based on their R2 values. I am using jtest as following: jtest(lm(Y1~X11),lm(Y1~X12)) jtest(lm(Y1~X11),lm(Y1~X13)) jtest(lm(Y1~X11),lm(Y1~X14)) etc Is there is a way to general

Re: [R] barplot with a probability density curve

suitable tool to use. However, it also means that I cannot plot probability density curve using this type of data because I would need to have a histogram instead. Did I get it right? Many thanks, Olga On 03/15/2010 08:32 AM, Olga Lyashevska wrote: Dear all, I am making a barplot as

[R] barplot with a probability density curve

Dear all, I am making a barplot as following: barplot(c(1,2,3,5,2,3,1),names.arg=c("100","200","300","400","500","600","700"),xlab="diameter",ylab="flow",main="some title",space=0.1) I am also trying to add a probability density curve, however using lines(density(c(1,2,3,5,2,3,1))) does not gi

[R] looking into function body without package installation

Dear all, I was wondering if there is a way to explore a syntax of particular function without package installation? I am trying to write my own functions, and I would like to see how other people approached similar problems. If every time I have to install/load package to be able to explor

Re: [R] Conditional sampling?

Hello all, Here is my solution, in case someone else needs it. I have a dataframe consisting of two columns. col1<-factor(c("a","a","b","b","c","c")) col2<-factor(c("a","b","c","d","e","f")) somedf<-data.frame(col1,col2) somedf col1 col2 1 a d 2 a e 3 b f

Re: [R] Conditional sampling?

Thanks Thierry! On 04.02.2010, at 13:22, ONKELINX, Thierry wrote: selection <- subset(somedf, col1 != "a") sample(selection$col2, 2, replace = TRUE) I simplified it, but in fact it is not only 'a' to be eliminated, but thousands of rows. Can I use: col1sample<-sample(col1,2,replace=T)

[R] Conditional sampling?

Hello, I have a dataframe consisting of two columns. > col1<-factor(c("a","a","b","b","c","c")) > col2<-factor(c("a","b","c","d","e","f")) > somedf<-data.frame(col1,col2) > somedf col1 col2 1 a d 2 a e 3 b f 4 b g 5 c h 6 c i > s

[R] working with taxonomic trees: sampling

Dear all, I am working with taxonomic data, represented as a list of classes, orders, families, genera and finally species. > class(mydata) [1] "data.frame" > mode(mydata) [1] "list" > names(mydata) [1] "tclass" "torder" "tfamily" "tgenus" "tspecies" > length(mydata$tclass) [1] 161590

Re: [R] Microsoft SQL Server and R

Jim point you use a java client to connect to MSSQL through RJDBC which you may use for example a free jDBC driver like jTDS. Caveman On Wed, Jan 27, 2010 at 12:44 PM, Olga Lyashevska wrote: Hi David, I have a client running Microsoft SQL Server. I am interested in ways of accessing data

Re: [R] Microsoft SQL Server and R

Hi David, > I have a client running Microsoft SQL Server. I am interested in > ways of accessing data from this server using R. > Why don't you try RMySQL package? It works fine for me. [[alternative HTML version deleted]] __ R-help@r-project

Re: [R] RMySQL - Bulk loading data and creating FK links

Hi Nathan, I have a table (contact) with several fields and it's PK is an auto increment field. I'm bulk loading data to this table from files which if successful will be about 3.5million rows (approx 16000 rows per file). However, I have a linking table (an_contact) to resolve a m:m rela

Re: [R] read.csv from a remote machine

Thanks for your suggestions Mark, On 04.08.2009, at 19:16, Mark Wardle wrote: Alternatively, can't you copy the data to the Linux box using sftp first? This is perhaps the easiest option. I have established sftp connection. Now I simply add all files I need to use. So the problem is solve

Re: [R] read.csv from a remote machine

Thanks Barry and Steve, I am trying to import data with read.csv and my file is on remote machine. I believe that I need to open a connection, not sure about syntax though. Probably works with ftp: too. How remote is it? In fact it is a bit more complicated. I am working on a Mac machine,

[R] read.csv from a remote machine

Dear all, I am trying to import data with read.csv and my file is on remote machine. I believe that I need to open a connection, not sure about syntax though. I would appreciate any suggestions, Thanks! Olga __ R-help@r-project.org mailing list