similar to: loop through files in a dir

Hello all, I use R on both windows and a "mainframe" linux installation (RedHat enterprise 3.0, which they tell me is soon to be upgraded to 4.0). On windows I installed the package gplots without trouble, and it works fine. When I attempted to do the same on the unix computer, the following error message was forthcoming: downloaded 216Kb * Installing *source* package

Hello there, This question is relative to WindowsXP, using R 2.2.1: I am looking for a function that allows a user to interactively choose a directory so I can use list.files to process all the files in that directory. I've looked at getwd, but this is not interactive. The functions file.choose and choose.files are the right idea, but these only permit selection of a file within a

Hello there, Using 1.9.0 on WinXP... I have a data frame, one column of which is named "rate". The column has text entries like "fast", "medium", "slow", "very slow", and so forth. I have not tried to make them factors, but maybe R did this automatically. Anyway, I would like to display on the console rows that meet a rate criterion. So I want

Hello list, I am making scatterplots of data that vary sinusoidally over 24 hours. With a bit of previous help from this list, I now can get an x-axis with time tics from 00:00 on the left edge to 12:00 in the middle and 00:00 on the right edge, i.e., just 24 hours. Now I would like to fit a sin function to the plot. I've looked all over CRAN and the web in general, but have not found a

Hello all, I'll bet this is not complicated, but I really did hunt for information on it, and tried some ideas without success. Running Windows XP and R 2.3.1 I am using the Sound package to read in .wav files, and this works fine. The R object produced is of class "sample". I want to use some of the functions in the package Seewave to do further analysis, but this package

Hello there, Using R 2.4.0 on Solaris (Unix): I am trying to control the X axis range on a simple time of day plot. I made a test program (below) that gets file time stamp information from the files in the directory where R starts. The goal of the test program is to plot the time of day of file creation on an x axis that spans a user-specified range (like 12:00:00 to 15:00:00). If I allow

Hello there, I'm struggling with the base graphics system on different operating systems. I would like to get an animation effect by re-plotting with the plot function. See the attached code example: move the slider quick from one side to the other. I experience different levels of success, depending on which OS I use. - Linux (Ubuntu >9.10, R 2.9.2-3): Each plot command gets

Hi there, I have some data which are convenient to enter as lists. For example: t1<-list(fname="animal1",testname="hyla",dspkr="left",res1=39.7,res2=15.0) t2<-list(fname="animal1",testname="bufo",dspkr="left",res1=14.4,res2=56.1)

Hi All, I am currently preparing some form of slideshow introducing R and its capabilities for some colleagues. The thing will be about 30 mins, and I'd like to have some "pretty pictures" and some "amazing facts" (I'm trying to sell, obviously :)). Can I ask if it's possible to easily retrieve a gross figure of the number of functions in R considering the

Hi, I am working under Windows and I am using R2.11 I want to use tkscale in my GUI. As the interval is quite big, I can't set the scale to a certain specific value. Therefore I want to add tkentry to allow the user to set tkscale to a certain value. Here is the code library(tcltk) tt<-tktoplevel() tkpack(m1<-tkscale(tt,from=306870.00, to=3026741, label="alpha",

Hello all, I found a package I want to try listed at http://www.maths.lth.se/help/R/.R/doc/html/packages.html I am using R 1.9.0 on winXP. The package is called R.audio When I tried the example, it did not work and produced the error message: Error: Object "Sound" not found Normally I would assume that I have to download a package and I would go looking for it...

Full_Name: Sundar Dorai-Raj Version: 2.8.0 OS: Windows Submission from: (NULL) (76.220.41.126) The following code crashes R: library(tcltk) tt <- tktoplevel() tc <- tkcanvas(tt, yscrollcommand = function(...) tkset(ts, ...)) > sessionInfo() R version 2.8.0 (2008-10-20) i386-pc-mingw32 locale: LC_COLLATE=English_United States.1252;LC_CTYPE=English_United

Hello everyone, this is my first post here and I hope I signed up correctly and someone will take me by the hand and help me out. I am new to R and cannot figure out what to do here... ... I want to have an User Interface that requests input. I want to save this input to a variable to use it later on. I was able to do this with a modalDiaglog (

Hello, everyone. I have the following problem with TclTk: I create some windows and want to change their position with geometry manage (sometimes they will be centered, sometimes not). If the toplevel is created and its dimensions are gathered via 'tkwinfo', I get (usually) correct values. However, if this window is created by a function (in the following example, by 'ask.format')

hello list, Can someone help me figure out why the following code doesn't work? I'm trying to but both Greek letters and subscripts into a tcltk menu. The code creates all the mu's, and the 1 and 2 subscripts, but it won't create the 0. Is there a certain set of characters that R won't recognize the unicode for? Or am I input the \u2080 incorrectly? library(tcltk) m

Hello list, I wrote a simple program to plot data on polar axes, taking advantage of the plotrix package and its function radial.plot. The basic plot works fine, but I am having difficulties with the formatting. There are three problems, but I thought I would attack them one at a time. Here is the first: If my data set contains values with all vector lengths between 0 and 100 (and various

hello, how i cant to charge in form dynamic a checkbutton, try to do it with a vector be charged automaticamente but not works, for example library(tcltk) tt<-tktoplevel() f<-tkframe(tt) tkpack(f) i<-2 if (i==1) {b1<-tkcheckbutton (f,text="b1",variable="b1",relief="raised");tkpack(b1);print(tclvalue ("b1"))}else if (i==2) {b1<-tkcheckbutton

I can set up an entry widget (thanks to an old post by Barry Rowlingson) that gets a password and exits when the user clicks on the "OK" button. Anyone have any clever ideas for returning/ destroying the window when the user types a carriage return/ENTER in the text window? I've messed around a little with validate, validatecommand, but don't see any obvious way to do it ...

Hi, I am having trouble debugging this one. The code is attached below, but it seems to be a problem at the C-tk interface. If I run this 1 time there are no problems if I run it more than once I start to get warnings that increase in multiples of 11 everytime I run it. Here is a sample session > source("clrramp2.r") Loading required package: tcltk Loading Tcl/Tk interface ... done

Hello it wanted to add a boton of checkup in a menu, ?How I do to create so many variables as checkbutton? I try with the code that continues, use a vector that is charged dynamicamente while I open files but the component of vector "b" is associates with a Tcl variable and load 3 components (environment, value and pointer) I wanted alone to charge the value (0 done not select