[R] Problems with as.POSIXct

Hi R users: This is a very strange problem: Why this instruction shows me NA?, and any other date shows me that error! as.POSIXct(strptime("1992-5-3",format="%Y-%m-%d")) This is my R version on windows 7. "R version 2.13.1 Patched (2011-08-25 r56794)" Thank you for your help. ___

[R] [SOLVED] Two functions as parametrs of a function.

Dr. Murdoch: Thank you very much for your help. Where can I find a more systematic documentation about these topics? I mean, examples of "do.call", environments, "as.function", the scoping and the way understand when to use "force", etc. Again, thank you. Kenneth - Mensaje original -

[R] [SOLVED] Two functions as parametrs of a function.

Dr Dallazuanna: Thank you for your help. It works very good! - Mensaje original - De: Henrique Dallazuanna Fecha: Jueves, 7 de Abril de 2011, 7:05 am Asunto: Re: [R] Two functions as parametrs of a function. A: Kenneth Roy Cabrera Torres CC: r-help > Try this: > > f2 <- function(n,

[R] [SOLVED] Re: Use of the dot.dot.dot option in functions.

: Re: [R] Use of the dot.dot.dot option in functions. A: KENNETH R CABRERA CC: r-help@r-project.org > On 06/04/2011 12:04 PM, KENNETH R CABRERA wrote: > >Hi R users: > > > >I try this code, where "fun" is a parameter of a random generating > >function name, and I pr

[R] Use of the dot.dot.dot option in functions.

Hi R users: I try this code, where "fun" is a parameter of a random generating function name, and I pretend to use "..." parameter to pass the parameters of different random generating functions. What am I doing wrong? f1<-function(nsim=20,n=10,fun=rnorm,...){ vp<-replicate(nsim,t.test(fun(

[R] Help with R in ubuntu (more organized)

Dear R users: Maybe it is a silly question, but I'm don't understand what am I doing wrong. In a new karmik koala ubuntu installation I compile the last patched 2.10.1 version of R. Every thing was right (I install all the dev libraries I need). First I type: ./configure --enable-R-shlib An

[R] Help with R in ubuntu

Dear R users: Maybe it is a silly question, but I'm don't understand what am I doing wrong. In a new karmik koala ubuntu installation I compile the last patched 2.10.1 version of R. Every thing was right (I install all the dev libraries I need). First I type: ./configure --enable-R-shlib An

[R] Acumulate assign on lapply list

Hi R users: f1<-function(l1,idx){   f2<-function(i,l1)   l1[[i+1]]<<-c(l1[[i]],l1[[i+1]][-1])   lapply(idx,f2,l1)   return(l1) } l<-list(c(1,2,3),c(4,5),c(6,7,8)) l2<-f1(l,1:(length(l)-1)) l2 I got: [[1]] [1] 1 2 3 [[2]] [1] 1 2 3 5 [[3]] [1] 4 5 7 8 But what I want in the last position of

[R] number of iterations exceeded maximum of 50 using profile

Hi R users and experts: I got the following message when I use the profile function on a nls models. The nls function converges at 19 interactions, but I don't know what I am doing wrong using the "profile" function. "Error en prof$getProfile() : number of iterations exceeded maximu

[R] Legend in coplot

Hi R users: Is there a way to put a legend in a coplot, where I use colors for a categorical variables in each panel (besides the other two categorical variables that I use in the coplot graph). Thank you for your help. Kenneth [[alternative HTML version deleted]]

[R] Legend in coplot

--- Begin Message --- Hi R users: Is there a way to put a legend in a coplot, where I use colors for a categorical variables in each panel (besides the other two categorical variables that I use in the coplot graph). Thank you for your help. Kenneth --- End Message --- ___