R help - May 2008 - How to pass variable of for loop on read table text

Hi,

I have a couple of text and would like to automate of reading these multiple
files using
(namely; text1.txt, text2.txt....)

for(y in 3:10){
data$y<-read.table('text$y.txt')}

But it seems not allow. Any idea?


Thanks.

	[[alternative HTML version deleted]]

?paste

paste('text',y,'.txt', sep="")

and you likely need data[[y]] instead of data$y.

On May 23, 2008, at 9:05 PM, Jason Lee wrote:
> Hi,
>
> I have a couple of text and would like to automate of reading these  
> multiple
> files using
> (namely; text1.txt, text2.txt....)
>
> for(y in 3:10){
> data$y<-read.table('text$y.txt')}
>
> But it seems not allow. Any idea?
>
>
> Thanks.
>
> 	[[alternative HTML version deleted]]
>
Haris Skiadas
Department of Mathematics and Computer Science
Hanover College

maybe this should also be a FAQ because i've seen it a lot since I've 
been on this list ?

assign each data.frame to a component of a list, rather than to a 
component of a dataframe. you also need paste to get the number.

listDFs<-list()

for ( y in 3:10 ) {
 
listDFs[[y]]<-read.table(paste("text1",y,sep=""),header=TRUE
if there
are headings, whateverelse)
}

listDFs[[1]] will then contain the first data frame, listDFs[[2]] the 
second etc.




On Fri, May 23, 2008 at  9:05 PM, Jason Lee wrote:
> Hi,
>
> I have a couple of text and would like to automate of reading these 
> multiple
> files using
> (namely; text1.txt, text2.txt....)
>
> for(y in 3:10){
> data$y<-read.table('text$y.txt')}
>
> But it seems not allow. Any idea?
>
>
> Thanks.
>
> 	[[alternative HTML version deleted]]
>
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