similar to: tcltk: testing for widgets?

Hallo! Can anyone explain to me how to add a vert. scrollbar to a listbox using tcltk please? Thanks -- Frank Gerrit Zoellner -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject

Hi, I've been playing with the tcltk package. It's very nice to have access to buttons, menus etc. now. Thank you! Alas, I also have questions: In Tcl everything is a string [*]. This is not the case in R, of course. So why are return values of tk commands still strings? (Is there any other reason than speed or "package is work in progress"?) Example: > tt <-

Hi! I want o calc the norm of a complex number ( |c| where c is complex). Does the function abs() this ? Thanks, -- Frank G. Zoellner AG Angewandte Informatik Technische Fakult"at Universit"at Bielefeld phone: +49(0)521-106-2951 fax: +49(0)521-106-2992 email: fzoellne at techfak.uni-bielefeld.de

Hi! I am using the fft() function the base package to transform some 1d signal. If I use this standar fucntion I get a very huge first fourier coeficient. I think this dues to the handling of the borders of the signal. Usually in fft especially in image processing the signal is simulated to be continuous by adding the signal several times periodically. My question is, is there some function

Hi! I've got two problems with listboxes and selection: I created a listbox, no problem. Then I bind the Button-1 of the mouse to the listbox to start some things by pressing the mousebutton. The proiblem is that as I click a item of the listbox this error occured: Error in .Tcl(.Tcl.args(...)) : [tcl] bad listbox index "": must be active, anchor, end, @x,y, or a number. Repaeting

Hi! I am using R 1.8.1 and the svm of the e1071 package for classification. The problem is that I have unbalanced classes e.g. the first one is much bigger than the second one and therfore the svm is biased to the first class. If I manually adjust the class size the bias disappears. The question is then how to include this unequal class distribution to the svm (e.g. via wheights or costs)?

Dear list members, Is it possible via a suitable tcltk command to get the *current* width, in characters, of a Tk text widget that has been resized with the mouse? In the following code, the reported width of the text widget doesn't change, even though it has been resized. I can, however, get the current width in pixels: > library(tcltk) > top <- tktoplevel() > textWindow <-

Dear R-helpers: I want to calculate area under a Receiver Operator Characteristic curve. Where can I find related functions? Thank you in advance Xiao

Hi! I have a problem using the legend command. I typed as follows: plot(foo bar...) legend(0.6,10, c("True Positiv", "False Positive", "False Negative","True Negative"), col = c("black",2,3,4),lty=c(1,1,1,1),pch=c(0,0,0,0), merge = TRUE, bg='gray90') The plot and its legend is displayed ok. The I apply a dev.cop2eps on it to save the

One of the few things that I miss from Splus is the ability of interactively add text and symbols to graphics that have been created by functions. I understand that the best solution in R is to create a graphic file and use external software for editing the graphic. I know what to use in the Win environment, but could anyone suggest what tools would be appropriate under Linux? Thanks Agus Dr.

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')

Hi! I'm using the RODBC packages for connecting R and a mysql database. To do this, i use the function odbcConnect(dsn,uid,pwd). Is it possible to read the connection paramters from the odbc.ini file within R? +Especially I'm interested in uid/pwd parameters because of security reasons. Thanks -- Frank Gerrit Zoellner

HI! I'm using the function dev.copy2eps to store a plot into a file. How can I change the default name of the file and the path where the file should be created ? Thanks -- Frank Gerrit Zoellner -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info",

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

Hi! I want to combine two plots. On the one hand i've got a histogram and on the other hand a line plot. The y axis of the plot are different and i want both axis (one on the right side the other on the left side) in the plot. How can I do this in R ? Thanks -- Frank Gerrit Zoellner -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Hi! How can I read the process id of my actual R session? Thanks -- Frank Gerrit Zoellner -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at

Hi! I've got a dataframe with -Inf values inside and i want to substitute them with 0. The dataframe is only one column. How can I do this in R? Thanks -- Frank Gerrit Zoellner -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or

I have been doing some heavy testing with the new FLAC version, and I found that CreateFile function in grabbag had been left out of UTF-8 treatment at some point. This causes re-encoding an existing flac to the same name to break the file if it contains non-ascii characters. Attached patch fixes this. -------------- next part -------------- diff --git a/include/share/win_utf8_io.h

Dear members, assume given a function of type test<-function(formula, data , w){ ...... glm1<-glm(formula, family=poisson, data=data, weights=w) ...... } and a simple example data frame as test.frame<-data.frame(x=1:10,y=(1:10)*2,a=(1:10)^3). Let us now execute test(y ~ x, test.frame, a ) My question is: What do I have to insert at the first occurance of ..... in the test

1. I want to change the mouse cursor over my window into a wait/watch icon while R computes. Can this be done directly? Some ancient tcltk mailing lists said change the cursor over every widget in the window: foreach widget [winfo children $window] { $widget config -cursor watch } To do this I'll need a list of