[R] Problems using save to store NAMED R objects

I have to store (in a file) an R object that was created with is name as a string of characters, as follows: : nn <- "xxx" : assign(nn, 5) : xxx [1] 5 I don't want to store the object nn but the object xxx. I tried the following two expressions but none of them worked: :

Re: [R] Problems using save to store NAMED R objects

t;murdoch.dun...@gmail.com> wrote: > On 12/11/2015 6:41 PM, Julio Sergio Santana wrote: > >> I have to store (in a file) an R object that was created with is name as >> a string of characters, as follows: >> >> : nn <- "xxx" >> : as

[R] Using split.screen with a definition matrix of the screens seems to be a mess. I don't understand!

I have a particular need to divide the device space to draw different plots and texts, so I decided to use split.screen using a matrix to define the different space partitions. My code and explanation is as follows: # -- START OF R CODE dirGraf - TEST/ # A directory to put the result

[R] legend with math (greek letters) symbols

I need to add a legend with three entries that should contain a greek letter (lambda). I learnt that it is possible using the function expression. So I need to build the expressions from the lambdas vector, and I simply cannot do it. This is the uggly result I got: x - 0:20 cc - c(yellow,

[R] Curious behaviour of lapply and lists of functions

Let's say I define a simple list of functions, as follows lf - list( function(x) x+5, function(x) 2*x ) Then I can take any individual function from the list and use it with any value, as it is shown: lf[[1]](3) [1] 8 lf[[2]](3) [1] 6 this gives me

Re: [R] Curious behaviour of lapply and lists of functions

Julio Sergio Santana juliosergio at gmail.com writes: ... Producer - function(f) function(x) 1/f(x) Counsulting a previous post, I got to the solution, I just need to rewrite the function Producer forcing it to eavaluate its argument, as follows Producer - function(f) {f ;function

Re: [R] R strange behaviour when working with fifos

Julio Sergio Santana juliosergio at gmail.com writes: I'm trying to establish a connection to a pair of fifos in R, one represents the input stream of a process and the other one the output of the same process. The problem is that R behaves very different when running the commands

[R] R strange behaviour when working with fifos

I'm trying to establish a connection to a pair of fifos in R, one represents the input stream of a process and the other one the output of the same process. The problem is that R behaves very different when running the commands directly in the interpreter than when running via a script file.

Re: [R] Using assign with mapply

Greg Snow 538280 at gmail.com writes: The take home message that you should be learning from your struggles is to Not Use The 'assign' Function! and Do Not Use Global Variables Like This. R has lists (and environments) that make working with objects that are associated with each other

Re: [R] Using assign with mapply

Julio Sergio Santana juliosergio at gmail.com writes: I have a data frame whose first colum contains the names of the variables and whose second colum contains the values to assign to them: : kkk - data.frame(vars=c(var1, var2, var3), vals=c(10, 20, 30

Re: [R] Using assign with mapply

David Winsemius dwinsemius at comcast.net writes: So what happens if you try this: mapply(assign, kkk$vars, kkk$vals, MoreArgs = list(envir = .GlobalEnv) Yes, it works in certain situations, as well as the equivalent code: kkk - data.frame(vars=c(var1, var2, var3),

[R] Using assign with mapply

I have a data frame whose first colum contains the names of the variables and whose second colum contains the values to assign to them: : kkk - data.frame(vars=c(var1, var2, var3), vals=c(10, 20, 30), stringsAsFactors=F) If I do : assign(kkk$vars[1], kkk$vals[1])

[R] Countour for netCDF-like meshes

Hi, A model gives me as output a netCDF file which I read with ncdf package. The output consists of three similar matrices: one contains the variable value, and the other two, the longitude and latitude coordinates. I need to do a contour graph with such information, however, the R contour

[R] Trying to use pipes in R

Hi, I'm trying to use pipes in R. By now, I could launch the linux command wc (to count words from a text), but I don't know how to capture the results, say in a vector of chars... Here is the R code I'm trying: : f - pipe(wc, open=w) : writeLines(c(uno dos tres, cuatro cinco, seis), f) :

Re: [R] Trying to use pipes in R

, cuatro cinco, seis) #get individual word count within quotes res1-unlist(lapply(strsplit(vec1, ),length)) res1 #[1] 3 2 1 #get whole word count length(unlist(strsplit(vec1, ))) #[1] 6 - Original Message - From: Julio Sergio Santana julioser...@gmail.com To: r-help@r

[R] Some kind of inverse of names

I wonder if there exists some kind of inverse of the names primitive in R. Let me explain what do I mean: If I create a list: - li - list(a=1, b=2, c=3, d=4) then I can have: - names(li) [1] a b c d which is, I guess, some kind of vector, since - typeof(names(li)) [1] character however,

[R] Trying to build up a user interface with the R tcltk package

I'm trying to build up a user inteface using the R tcltk component. Since the documentation for this R library is scarce and poor, I have decided to use only the .Tcl function to pass commands to the tcl interpreter. So I wrote my first very simple tcltk program, hoping to run it from inside R