How do I select column by looping strings in a vector?

Asked Mar 29 '16 at 17:18

Active Mar 29 '16 at 17:18

Viewed 24 times

I have a vector list:

indieVars <- c("COL1","COL2","COL3")

I want to run this code

for(indieVar in indieVars){
  myDataFrame$indieVar
}

Only problem is the loop thinks it's looking for a column in myDataFrame called indieVar. I want it to look for the column name represented by indieVar. How do I do this?

asked Mar 29 '16 at 17:18

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Use `[` or `[[` depending on what you want. – A5C1D2H2I1M1N2O1R2T1 Mar 29 '16 at 17:19
@AHandcartAndMohair Where would I put that? – Username Mar 29 '16 at 17:20
2

`$` means exact match, that's why your loop won't work. Try `myDataFrame[indieVar]` – fhlgood Mar 29 '16 at 17:23

How do I select column by looping strings in a vector?

0 Answers0