similar to: Turtle world

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

To represent a turtle inside a canvas (tcltk package), I have a serie of bitmaps representing the turtle heading in different directions and I would like to display the one that corresponds to the current direction of the turtle (function below). I have created with Paint a bitmap representing the turtle in BMP format and succeeded displaying it on canvas after converting it into XBM format

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

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

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 Martin, Thanks for your reply. I am responding on r-devel to provide some examples of outputs of the function that I had list in the post-scriptum of my previous email (BTW, did my post went through the list? I subscribed only after mailing it). You wrote: >Just to ask the obvious: > > Why is using str() not sufficient for you and instead, > you use 'print.object'

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I have would like to use logistic regression to analyze the percentage of correct responses in a 2 alternative forced choice task. The question is whether one needs to take into account the fact expected probabilities for the percentage of correct responses ranges between 0.5 and 1 in this case and how to adjust the link function accordingly in R (see details below). Gabriel Subjects were asked

Dear useRs, I am fitting a mixed model using the function lmer from the package lme4, but I have some problems when I try to test the effect of my factors of interest. First let me explain the structure of the model: I'm measuring animal movements. Explicitly, I am interested in displacement (straight-line distance from an initial point). Displacements are measured longitudinally, with one

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

In porting some Common LISP code to R, I am trying to found out whether special care must be taken for the let* function. In Common LISP, "the let* block is like let except it is guaranteed to evaluate the initialization of its local variables in sequentially nested scopes, i.e. it provides an order to the binding and visibility of preceding variables.". I have included the recursive

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:

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>,

Folks, I found free-nx in the repositories and tried to install/use it I could not figure out how to get it working. I tried following directions on the wiki But I still could not get it working Feel free to contact me at stephen.bovy at teradata.com I am currenly using the official ns server on sles 11 sp3 Is their any direction on how to install free nx on sles ??

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

On Mon, Oct 16, 2017 at 2:18 PM, Boris Ostrovsky <boris.ostrovsky at oracle.com> wrote: > On 10/12/2017 03:53 PM, Boris Ostrovsky wrote: >> On 10/12/2017 03:27 PM, Andrew Cooper wrote: >>> On 12/10/17 20:11, Boris Ostrovsky wrote: >>>> There is also another problem: >>>> >>>> [ 1.312425] general protection fault: 0000 [#1] SMP

On 10/17/2017 01:24 AM, Josh Poimboeuf wrote: > On Mon, Oct 16, 2017 at 02:18:48PM -0400, Boris Ostrovsky wrote: >> On 10/12/2017 03:53 PM, Boris Ostrovsky wrote: >>> On 10/12/2017 03:27 PM, Andrew Cooper wrote: >>>> On 12/10/17 20:11, Boris Ostrovsky wrote: >>>>> There is also another problem: >>>>> >>>>> [ 1.312425]