similar to: R-beta: image(x,y,z)?

I know how to first set postscript output, then execute plot or image command to create a postscript file of a plot or image. I was wondering if it is possible to first create the plot or image on screen so it can be viewed, THEN save it to file? Without doing plot() or image() again? (I ask because I have a complicated image computation that takes about 1-2 hrs to complete. I would like to

Hello, outer() is great for avoiding things like: for (val1 in val1s) { for (val2 in val2s)) { x[i,j] <- somefunction(val1, val2) } } The same can be obtained with: outer(val1s, val2s, somefunction) But what if there are three (or more) sets of values to loop over? Any way of avoiding the loops then? Thanks, -- Wolfgang Viechtbauer

I include the argument pty="s" to image, but still when I make an image by the method > postscript("rstuff/test.ps") > tauseq<-seq(0,1,.5) > cif2d.image(x,,y,tauseq) > dev.off() the image plot created is NOT square. I thought pty="s" would make it square. Generally it would be nice if the image saved to disk were like the one we see while in R

I think I am misunderstanding something about the identify() function. if we have an example such as this: > x_1:10 > y_1:10 > plot(x,y) > identify(x,y, n=1) [1] 2 3 > I clicked on two points and identify() returned both of them (2 and 3). The manual says n is the maximum number of points to be identified. If I specify n=1, should identify() return a single value?

Does R have a function like the S(plus) function, lmsreg, Least Median of Squares Regression? I am using R-0.61. Thank you, Mike Fleming mfleming at nass.usda.gov -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or

Does R have a function like the S(plus) function, lmsreg, Least Median of Squares Regression? I am using R-0.61. Thank you, Mike Fleming mfleming at nass.usda.gov -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or

Questions on image: 1) How can I put labels on the x and y axes? 2) How to tell it to use e.g. 32 grey levels (not some colour map)? 3) How to know what the legend is (i.e. each grey level = what z value)? Thanks very much for any help. BTW I was wondering if persp was on the To Do list. That would be great! Bill Simpson

Hi, when designing libraries for R, is it possible to call C/Fortran subroutines from other dynamically loaded code? The following example crashes R: ********* fn1.c ***************** void twice(int *i) { *i = 2 * *i; } ********************************* ********* fn2.c ***************** extern int twice(int *i); void negtwice(int *i) { *i = -1 * twice(i); }

Hi, when designing libraries for R, is it possible to call C/Fortran subroutines from other dynamically loaded code? The following example crashes R: ********* fn1.c ***************** void twice(int *i) { *i = 2 * *i; } ********************************* ********* fn2.c ***************** extern int twice(int *i); void negtwice(int *i) { *i = -1 * twice(i); }

I am having some difficulties using dynamically loaded C functions on a Sparc 10 with R compiled using cc (both R-0.49 and R-0.50). I get sporadic errors with the error message: Error: character variables must be duplicated in .C/.Fortran, with C functions which pass character variables. my C functions look like: anyfunc(char **filename, other variables ) This error message appears about 25%

I am having some difficulties using dynamically loaded C functions on a Sparc 10 with R compiled using cc (both R-0.49 and R-0.50). I get sporadic errors with the error message: Error: character variables must be duplicated in .C/.Fortran, with C functions which pass character variables. my C functions look like: anyfunc(char **filename, other variables ) This error message appears about 25%

To Whom It May Concern, I have been informed that there is a public domain software called "R" which is available through ftp://stat.auckland.ac.nz. I've tried the address but I can't find the software itself. Can you help me on this. Thanks. Belen Razo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

To Whom It May Concern, I have been informed that there is a public domain software called "R" which is available through ftp://stat.auckland.ac.nz. I've tried the address but I can't find the software itself. Can you help me on this. Thanks. Belen Razo -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Hmm... Are my questions too simple or too difficult? Anyway, I try it once more... -------------- next part -------------- An embedded message was scrubbed... From: palme at uni-wuppertal.de (Hubert Palme) Subject: R-beta: Printing Date: Tue, 10 Mar 1998 16:58:35 +0100 (MET) Size: 2755 Url: https://stat.ethz.ch/pipermail/r-help/attachments/19980313/12e3bfea/attachment.mht -------------- next

I want to do something like this in R. If I have three vectors > a1 [1] 1 2 3 > a2 [1] 4 5 6 > a3 [1] 9 10 7 I want to compute 1. A vector that is the mean at each serial position of a1, a2, and a3. so in this example it would have the contents 4.667, 5.667, 5.333333 2. A vector that is the SD at each serial position of a1, a2, and a3. so in this example it would have the contents

In S, I can have an "overall" title in a multi-figure plot : par(mfrow=c(2,2), oma = c(0,0,2,0)) frame() #- ! mtext("Sine Functions", cex=2, outer =T) x_1:100 for(i in 1:4) plot(x, sin(i*pi*x/100), main=paste(i), type = 'l', col = 1+i) In R, this doesn't work as it should, with and without the 'frame()' statement. ((where is the bug?

I have a question on the use of return(). (Nothing on it in the docs I have) The test code below gives the error: Error: Object "x" not found when I do: thingy2(). How should it be fixed? Thanks very much for any help! (My original solution to this sort of problem was to use global variables x<<-... y<<-...) Bill Simpson ----------------------------- thingy<-function(k)

I'm still getting used to R's scoping. I've run into the following situation value=0 thefunction <- function() print( value ) somefunction <- function() { value=99; thefunction() } somefunction() now, I understand that somefunction() returns 0 because thefunction() was defined with value=0 in its parent envrionment, it dosent look at all in the environment of somefunction. My

Both of these used to work and seem useful and harmless: R> matrix(1,ncol=1)%*%c(1,2) Error in matrix(1, ncol = 1) %*% c(1, 2) : non-conformable arguments R> matrix(1,ncol=1)*(1:2) Error: dim<- length of dims do not match the length of object Thomas Lumley -----------------------------------------------------+------ Biostatistics : "Never attribute to malice what : Uni of

Both of these used to work and seem useful and harmless: R> matrix(1,ncol=1)%*%c(1,2) Error in matrix(1, ncol = 1) %*% c(1, 2) : non-conformable arguments R> matrix(1,ncol=1)*(1:2) Error: dim<- length of dims do not match the length of object Thomas Lumley -----------------------------------------------------+------ Biostatistics : "Never attribute to malice what : Uni of