similar to: growing a list sequentially -- memory management

hi, get.vars.name.prefix<-function(prefix){ result<-list() len<-nchar(prefix) var.names<-ls(name=1,pattern=prefix) #name=1 probably wrong option print(var.names) for(i in 1:length(var.names)){ name<-var.names[i] field<-substr(name,len+1,nchar(name)) result[[field]]<-get(name) } result } for example x.1<-1 x.2<-2 get.vars.name.prefix("x.") should

hello, the example below does not work. (i know it's not supposed, but it makes it clear what i'm trying to achieve) par(mfrow=c(2,1)) xyplot(y~x2|x1,data=dataframe1,pch=20) xyplot(y~x2|x1,data=dataframe2,pch=20) i know i could probably merge the two datasets and do something like xyplot(y~x2|x1+dataset,data=merged) any other suggestion? thanks. [[alternative HTML version deleted]]

hello, i need help with: data$f1<-as.factor(data$f1) data$f2<-as.factor(data$f2) s3<-equal.count(data$s2,number=3) densityplot(~y| f1 + f2 + s3, data=mydata ) this produces 3 plots, *successively*, one for each value of s3. i was hoping it would produce one plot. is trellis limited to 2 conditional variables? if not, what are the appropriate commands? thanks! [[alternative HTML

hi, a) i have something like: ecdfgrp1<-ecdf(subset(mydata,TMT_GRP==1)$Y); ecdfgrp2<-ecdf(subset(mydata,TMT_GRP==2)$Y); how can i plot the difference between these 2 step functions? i could begin with ecdfrefl<-function(x){ecdfgrp2(x)-ecdfgrp1(x);} ... what next? b) if i have a vector with repeated numeric values how can i get the subset without repeated values .e.g (0,4,0,2,2)

I am running R on Ubuntu Heron. I recently updated to R 2.8.0 from the default (2.6) in the Ubuntu heron repository by adding deb http://cran.stat.sfu.ca/bin/linux/ubuntu hardy/ I updated all packages installed in /usr/lib/R/site-library and those in my home directory /home/duncan/R/i486-pc-linux-gnu-library/2.6 without obvious issues. I installed adehabitat and gpclib, which should be good

hi, here's what i have: \lstset{ basicstyle=\ttfamily, keywordstyle=\bfseries, showstringspaces=false, columns = fullflexible, mathescape = true, language=R } \begin{lstlisting} lst$val<-val \end{lstlisting} ./software.tex:16:Extra }, or forgotten \endgroup. lst$ the culprit here is the $ sign. thanks. ps: i'm posting here rather than Latex is bec i guess an R user is

hi, library(lattice) x<-c(-1,-1,-1,0,0,0,0,1,1,2) rng<-range(x) histogram(x,endpoints=c(rng[1]-0.5,rng[2]+0.5),nint=length(unique(x))) instead of contiguous bins, i'd like spaces between them to indicate that the data is discrete, or even better, line segments positioned at integer values. i know how to do this with plot, but i need it with histogram, so that in more complicated

hi, say i have a function f and i'd like to to call it like this: 1) f(list(a=...,b=...)) but i can't do it, because f is defined as: 2) f<-function(a=NULL,b=NULL){...} is there a way that i can approximate 1), such as mapping list(a=,...b=...) to "list(a=,...b=...)" and then replacing "list" by "f", and then evaluating the expression? thanks.

There is an unannounced and non-backwards-compatible change to the behaviour of 'get' in R2.8.0. 'get'ting a missing value now causes an error, whereas hitherto it's just returned a "missing" object. For example, in R2.8.0 this happens: test> getto <- function( x) get( 'x', sys.frame(1)) test> getto() Error in get("x", sys.frame(1)) :

Hi Allen and list, See the code below.? I've tried it on R2.13 and R2.8.0 using either heatmap.plus 1.3 or the latest.? All gave the same results.? The problem is in the last line: when I tried to plot two different color bars, the one corresponding to "cm.colors(10)" is not correct (it starts with one black and one red.? Not sure where they're from?) Any ideas? Thanks!

Hi Everybody I use R2.8.0 on Mac OS X. I set up LyX 1.6.1 to use Sweave today. I can compile the test file I found on CRAN ( http://cran.r-project.org/contrib/extra/lyx/) without a problem and the output looks very nice. In the test file the following R code is used. <<myFirstChunkInLyX>>= xObs <- 100; xMean <- 10; xVar <- 9 x <- rnorm(n=xObs, mean=xMean, sd=sqrt(xVar))

Hi, I am trying to aggregate the sum of my test data.frame as follow: testDF <- data.frame(v1 = c("a", "a", "a", "a", "a", "b", "b", "b", "b", "b", "c", "c", "c", "c", "c", "d", "d", "d", "d",

This is hopefully a trivial problem for list subscribers, but I am very new to writing R functions. I wish to call an R function written by myself from another program to fit a model. I need to tell it which of the independent variables are factors. I need to do this in a generic way, so that when the list is passed, R will work through the variables in the data frame and coerce them into being

Hello, My app needs to know where to store files but the path is different for dev and production. What is the best way to do it? - something like $path = ''/home/myrailsapp/public/files/'' in development.rb and $path = ''/home/my_remote_prod_sapp/public/files/'' in production.rb? - do a test to check the env and add the path in application.rb? - do a test to

When I run the gam function as part of an optimization and do the optimization many times using a loop, I'm finding that memory use increases over time (based on simply monitoring top). Below is some example code that involves varying the penalty parameter in gam, trying to find the value that gives exactly 50 edf for a simple smoothing problem. I thought I would post to the list to see if

Dear developers, I have noticed difference in computation time for the data.frame function between R2.9.0 and R2.8.1. The older release is more efficient: typically, R2.9.0 spends three more time in the data.frame function. Therefore, when many calls of this kind is done inside a function, the additional time spent with R2.9.0 may be several minutes. Looking at the profiling results (see file

Hi List, here I go again. Well I need to save plotted objects as .eps using the postscript() function, well I can do that but all resulting object are perfect squared dimensions (x = y). I need a rectangular output something like x = 2y dimension. Is it possible? The I’m new to R and postscript image format! I’m doing this…

Hello, I need to insert a line after every eigth row (group/suset) which should contains the following: <(an incremented ID),0,1,1,1,1> I have two problems with constructing my code: 1. I am getting NAs in three of the columns and 2) I can not find a way to write the ID (group name) at the beginning of the inserted line. Below the # sign I show one of the ways I tried from a variation

Greetings R-wizards: For historical reasons I have filenames with the character "?" and have successfully used "\u00e2" in its place, with the hoped-for result on all my on-screen plots. However since R2.7.0 I have trouble with savePlot() when the file name includes that character as it does in this example: savePlot(paste("diagnostic ? vs a ", file.label,

The behaviour of the plot function when used with xlim/ylim and the matplot function as in the following simple example changed between R2.6.1 and 2.7.0+ producing ugly plots in the new versions. In case of plot it looks like the pretty function is called with wrong arguments (i.e. range of supplied data rather than values of xlim and ylim): m = matrix(c(-0.033, 0.009, 0.064, 0.050, 0.097,