Thanks a lot works great :)
Alex
________________________________
From: Berend Hasselman <b...@xs4all.nl>
Cc: R help <R-help@r-project.org>
Sent: Saturday, March 10, 2012 11:19 AM
Subject: Re: [R] Treat Variable as String and a String as variables name
On 10-03-2012, at 10:39, Alaios wrote:
> Dear all.
> I am having ten variables (let's call the four of them as
>
> Alpha, Beta, Gamma and Delta.....)
>
> For each variable I have to print around 100 (plots). E
>
> So far I was copying paste the code below many times.
>
> pdf(file="DC_Alpha_All.pdf", width=15) # First Variable is treated as string
> plot_dc_for_multiple_kapas(Alpha, 4, c(5, 4), coloridx=c(24, 32)) # First
> Variable is now passed #inside the function as variable
> dev.off()
>
> So I could save my time If I can make a function that for every variable
> produces the current number of plots. The problem is, as you can also see
> from comment above that my variable has to be converted to string (first
> line) and also at the second line should be used as a variable.
>
> How I can make a loop in R that for a list of variables (the 10 variables I
> gave at the beginning) can either treat each entry of that list once as a
> string and once a real variable.
Something like this
varlist <- LETTERS[1:10]
varlist
for( k in 1:length(varlist) ) assign(varlist[k], runif(10))
varlist
myplot <- function(x,k) plot(x,col=k)
for( k in 1:length(varlist) ) {
varname <- varlist[k]
filename <- paste("DC_",varname,"_All.pdf", sep="")
pdf(file=filename, width=15)
myplot(get(varlist[k]),k)
dev.off()
}
Berend
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