[R] use variable in for loop to name output files

[john-usace]

Hi,

This question should be simple to answer. I am a new R user. 

I have a data.frame called appended. I would like to break it into 7 smaller
datasets based on the value of a categorical variable dp (which has values
1:7). I would like to name the smaller datasets set1, set2, set3,....,set7.
I don't know how to refer to the variable in the for loop, when naming the
output datasets. In STATA (which I am much more familiar with) each i in the
foreach loop would be refered to as `i'. This is the code I've included
below. I've also tried set[[i]] and set[i] neither works.

for (i in 1:7) {
	set`i' = appended[which(appended$dp==i & appended$sampled==0), ]
	write.table(set`i', file = "output\\set`i'.csv", sep = ",", row.name=F)
	}

I'm assuming I just need to replace `' with something else but I can figure
out what that something else is.



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