similar to: tkcanvas/bitmap for Turtle World

Dear all, I am trying to do a "loose" implementation in R of the Turtle World (LOGO) and need some advices on graphical issues. In its current very simple implementation, the user can give order to the the turtle to move through the console. The current position and movements are displayed graphically (see below). In the future, I would like to permit the turtle to interact with

I would greatly appreciate some idea about the best approach to make a graphical interface of for a turtle world in R. In the turtle environment, the user controls movements of a turtle through the command line (e.g. forward(10), turn(5), etc.). The turtle should be displayed in the new position and heading after each command. Also, the turtle's path and, possibly, objects (squares,

I would like to use R.oo and tcltk to implement a Turtle World. I have encountered many problems because: 1) I am not sure how to implement static fields with R.oo 2) I am not sure how to implement a constructor that would call a function only for the first instance of a class (i.e., to initialize value of static fields only once) 3) I am not sure how to remove/delete cleanly existing

Dear gurus: I have a question on how to configure the margin layout on tcl/tk GUI objects like tkcanvas, tkframe or tktoplevel. For example, if I want to leave a larger margin on the left side of the GUI container, which one should I configure, the toplevel or tkcanvas or tkframe? top<-tktoplevel() canvas<-tkcanvas(top, relief=, borderwidth=...) I also find the documentation for all

Hello, Is it possible to scroll a canvas that has a column of listboxes in it? Does scrolling only work with listboxes and text widgets? The following code displays the scrollbar, but - it has no thumb - does not respond to mouse clicks. - the vertical height of the tkcanvas (i.e. column1) is unconstrained. It's lower edge is out of view, and the lower button on the scrollbar is out of

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

Dear R friends- I'm attempting to generate a regression tree with one gradient predictor and multiple responses, trying to test if change in size (turtle.data$Clength) acts as a single predictor of ten multiple diet taxa abundances (prey.data) Neither rpart or mvpart seem to allow me to do multiple responses. (Or if they can, I'm not using the functions properly.) > library(rpart)

http://bugzilla.mindrot.org/show_bug.cgi?id=639 Summary: scp: wrong exit status Product: Portable OpenSSH Version: 3.6.1p2 Platform: All OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: scp AssignedTo: openssh-bugs at mindrot.org ReportedBy: koenig at

http://bugzilla.mindrot.org/show_bug.cgi?id=638 Summary: scp: wrong exit status Product: Portable OpenSSH Version: 3.6.1p2 Platform: All OS/Version: Linux Status: NEW Severity: normal Priority: P2 Component: scp AssignedTo: openssh-bugs at mindrot.org ReportedBy: koenig at

Dear R-help list members, I'm writing a package using tcltk. Thanks to Peter Dalgaard's excellent work on the tcltk package, almost everything has gone very smoothly. I'm stymied, however, by the following problem: I want to incorporate a bitmap image, stored as an xbm file, in a widget. To take a simple example, top <- tktoplevel() tkgrid(tklabel(top,

Currently, there are some problems in WINE with determining when the cursor should be visible. For example, when playing NoX, the X11 cursor sits smack dab in the middle of the screen -- the game's cursor moves around, but you have this annoying thing jerking around in the middle of the screen. At some point, perhaps someone will fix this, but for now, it can just be worked around. I decided

Dear R community, Is this sample size large enough to study differences between two groups of the populations? Q1: do the body temperatures differ between the two groups of the overwintering turtles juveniles and adults? One group (adults) has 6 turtles Second group (juveniles) has 1 turtle. There are 3 replications, i.e. the experiment was repeated over the three years, but using

Hi R-listers, Q1) What is the difference between the scatterplot and plot function? Q2) I am able to make a graph with the scatterplot function: scatterplot(DevelopIndex ~ Veg, + data = Turtle, + xlab = "Vegetation border (m)", + ylab = "Embryonic development index") And have been successful. But I do not know if the lines are for:

Thanks to all kind people who answered. Attached is a useful reply, among many others. -- Mauro Gasparini Professore Straordinario di Statistica Dipartimento di Matematica, Politecnico di Torino Corso Duca degli Abruzzi 24 I-10129 Torino, Italy tel: +39 011 564 7546 fax: +39 011 564 7599 email: gasparini at calvino.polito.it www: http://calvino.polito.it/~gasparin/ Coordinatore Scientifico

Hey guys, I just subscribed to the list about 15 minutes ago so i apologize in advance if this is something that has already been discussed. I skimmed through the web archives and I didn't see anything. I'm running FreeBSD/amd64 and after upgrading from 1.0b3 to 1.0b7 I am experiencing the following May 8 13:18:22 loveturtle dovecot: imap-login: Login: user=<turtle>,

Hello, I've got a small dataset on box turtle shell measurements that I would like to perform a detrended correspondence analysis on. I thought that it would be interesting to examine the morphometrics for each species in the area of overlap and in areas where neither species occurs.  I've taken a look at the dune and dune.env datasets in vegan. Using the str() command gives me  >

Hi there guys... I've been watching the list for a while, had a quick question. I work for a company (Turtle Beach) that makes a product that takes MP3 files that reside on your PC or Network Attached Storage, and lets you play them anywhere else in your home. (From your stereo for example.) Anyway, we've added basic MP3 streaming support (and have now gone to external beta) that

Hi, using both OpenSSH_2.5.1p1 (compiled myself) and openssh-2.9p1-23.i386.rpm from ftp.suse.com 7.2_update I get the following "leak" : using `scp' I tried to copy a file from a local floppy disk to a remote system, but the disk had an read error and scp didn't get any real data from floppy: turtle koenig > scp /media/floppy/file.c harald:file.c

I have completed a binomial GLM in R (details attached (finalModel.docx)) and I am trying to create a graph of observed and fitted values using the following commands: > MyData<-data.frame(time=seq(from=0,to=1323,by=1)) > Pred<-predict(M2,newdata=MyData,type="response") > plot(x=turtle$time,y=turtle$success) > lines(MyData$time,Pred) However, I get the following

Dear R community, I am wondering what experimental design I am dealing with? I study the effect of daily air temperature on daily body temperature of the overwintering turtles (i.e. sleeping in soil). The model is a cosine wave with the air temperature as a covariate. Objects are 19 overwintering turtles. Data were combined over the three years. Each turtle was studied only once during these