similar to: demo creating

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'm running into problems with using R functions as callback commands for buttons in Tk. The following Tcl/Tk script creates three buttons. If you press hello it prints hello world. If you press HALLO it prints HALLO WORLD. Not exciting, but I need an example... set tt [toplevel .tt] foreach i {"hello" "HALLO"} { pack [button $tt.b$i -text $i

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 ...

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

Hello, I'm trying to write a function using tcltk to interactively modify a plot and gather locator() data. I've read Peter's articles in Rnews, the help pages in tcltk, http://bioinf.wehi.edu.au/~wettenhall/RTclTkExamples/, plus a post in R-help sometime ago, but haven't found a solution. The idea goes something like this: require(tcltk) testplot <- function() { getcoords

hi, just having the idea create a simple tcl/tk gui-dialog for different data-file formats i get starting problems and it would be nice get some tips/tricks from experienced tcl/tk user in R ! tt <- tktoplevel() label.widget <- tklabel(tt,text="Decision Tree GUI") button.widget <- tkbutton(tt,text="Select SPSSFile", command=function()

Hi, The following code, from the examples in ?TkWidgets , immediately crashes R 4.0.1 for Windows: --------------------- snip -------------------- library("tcltk") tt <- tktoplevel() label.widget <- tklabel(tt, text = "Hello, World!") button.widget <- tkbutton(tt, text = "Push", command = function()cat("OW!\n")) tkpack(label.widget,

Why the variable archOp does not take the value that be chosen in the menubutton?, therefore always remains as a white one, I intend to charge the direccion of open files in a vector and then to elect with the menubutton with which to work but not functions thanks.Ruben library(tcltk) arch<-tclVar(init=" ") archOp<-tclVar(init=" ") vectPath<-c()

Hi, all, (sessionInfo at the end) I've been struggling with the tcltk package and can't seem to get the ttkcombobox to work. Here's an example: library(tcltk) p <- tktoplevel() l <- tclVar() ## I don't know if I'm even calling it correctly cb <- ttkcombobox(p, values = letters[1:4], textvariable = l) tkpack(cb) 1. How do I know when the value of the combobox has

hi, know anybody why this happen ? I''m using winedt , the old code saved in an .R call syntax error''s. Curious is, when i''m type below the same code , it works ??? ...imho a print type problem, what i''m never before observed and can''t recognize with my eyes ? P.S. R.1.6.1 /w2k thanks for advance & regards,christian >>getfile <-

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 all, using package tcltk this is my problem: I want to set a colour of a tclVar(). I have a tklabel (fixed in position) which should display two variables occasionally. If a constraint is fulfilled, the tklabel should display correct<-tclVar('correct') in green, otherwise it should display wrong<-tclVar('wrong') in red! To display the variables is no

Hello useRs Using the following code: library(tcltk) win<-tktoplevel() ff<-function(){ plot(1:10,1:10) pol<-locator(1) print(pol) } button<-tkbutton(win,text="test",command=ff) tkpack(button) makes the win panel stop responding when the plot is closed before choosing a location. Usually, the windows task manager has to be used to

This is my simple code, my intention is to let the inner function browse the objects in the outer function. ####################### tk1 <- function() { tk2 <- function() { inner <- 3 list2 <- ls() #list objects in fuction tk2 print("**** inner objects ****") print(list2) #list objects in fuction tk1 list_parent <- ls(parent.frame())

Hello I have data in many files in a directory, how can I loop through the files in a given dir in-order-to build a data.frame? thanks

Sorry, for my mail from last night contains no subject. Therefore, I send it again and two tcltk questions are appended. ---------------------------------------------------------------------------- Prasad wrote: > I wrote a function in R which uses tcltk package .... essentially I wanted > to give within that function, a widget with 2 radiobuttons to choose > between plotting Precip

Full_Name: Joachim H. Strach Version: 1.3.1 OS: Windows 98 Second Edition Submission from: (NULL) (132.230.131.220) I am using the tcltk package. Error-example: ---- library(tcltk) top<-tktoplevel() but<-tkbutton(top,text="Quit",command=function() {q(save="no")} ) tkpack(but) ---- then press the Quit-Button. On my Platform there will be a execution fault with

I am struggling with adding menus to a tcltk application. The following example (from the O'Reilly book on Perl/Tk) works fine: #!/usr/bin/perl -w use Tk; my $mw = MainWindow->new; $menub = $mw->Menubutton(-text => "Color")->pack(); foreach (qw/red yellow green blue grey/) { $menub->radiobutton(-label => $_, -command => \&set_bg,

Hello, I?m using R 2.11.1 with Tinn-R 1.17.2.4. I hope the given informations are enough (it?s my first entry here) The as.environment(pos) error appears in using the following code which should open a function in an other R-file. Here some extractions of the code: .... HZ<-tclVar(seq(length=a,from=1,by=0)) #(a is defined by a tkentry-element) VZ<-tclVar(seq(length=a,from=1,by=0))

So this wasn't tested for a month? Anyways, Free() is just free() with a check that we're not freeing a null pointer, followed by setting the pointer to NULL. At that point of tcltk.c, we have for (objc = i = 0; i < length(avec); i++){ const char *s; char *tmp; if (!isNull(nm) && strlen(s = translateChar(STRING_ELT(nm, i)))){ // tmp =