[R] paste data

Ray Brownrigg ray at mcs.vuw.ac.nz
Wed Jun 18 10:58:37 CEST 2008


get() is your friend.

Try:
for (x in 1:length(plot))
{
	thisdf <- paste("auto.", plot[x], sep="")
	plot(thisdf[, 1], thisdf[, 2], col=...)
}

HTH,
Ray Brownrigg

Sybille Wendel wrote:
> Hello,
> 
> I need a command.
> I have a lot of data in different dataframes(auto.0a, auto.0b, auto.0c, auto.5Na,...), that has similar names.
> 
> I could print the names all at once wih a loop with the command paste(), see below:
> 
> plot<-c("0a","0b","0c","5Na","5Nb","5Nc","PKa","PKb","PKc","5NPKa","5NPKb",
> 	"5NPKc","10NPKa","10NPKb","10NPKc","20NPKa","20NPKb","20NPKc")
> 
> for (x in 1:length(plot))
> {
> 	name<-paste("auto.",plot[x],sep="")
> 	print(name)
> }
> 
> I want to do very similar things with all the dataframes and their structure is also the same.
> Is there a way to write a loop? (so that I don't have to write the same 18 times)
> I tried things like that:
> 
> for (x in 1:length(plot))
> {
> 	plot(paste("auto.",plot[x],sep="")[,1],paste("auto.",plot[x],sep="")[,2],col=...)
> }
> 
> But it doesn't work because it just takes the character "auto.0a".
> 
> 
> Thanks a lot for your help,
> Sybille Wendel
> 
> 
> --
> 
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