[R] Loop Help

[bdossman]

Hi all,

I am a beginner R user and need some help with a simple loop function.

Currently, I have seven datasets (TOWER1,TOWER2...TOWER7) that are all in
the same format (same # of col and headers). I am trying to add a new column
(factor) to each dataset that simply identifies the dataset. Ultimately, I
would like to merge all 7 datasets and need that column to identify what
rows came from what dataset.

Using the code below, I get the error message "Error in rep(i,
nrow(TOWER.i)) : invalid 'times' argument" but it doesn't make sense to me
since nrow should give an integer value. Any help will be really
appreciated.

TOWERS<-c("TOWER1","TOWER2","TOWER3","TOWER4","TOWER5","TOWER6","TOWER7")

for(i in 1:7){
	TOWER.i<-TOWERS[i]
	TOWER<-rep(i,nrow(TOWER.i))
	TOWER.i<-cbind(TOWER.i[1:2],TOWER, TOWER.i[2:length(TOWER.i)])
}

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