Retrieve all information AFTER comma in dataframe column

Question

How can I extract information AFTER a comma from a dataframe column in R?

polyname
south dakota,minnehaha
colorado,larimer
nebraska,adams
nebraska,adams
nebraska,adams

I need a return column like

counties
minnehaha
larimer
adams
adams
adams

+3

r

mreth2409 May 29 '15 at 16:28

1 answer

akrun · Answer 1 · 2015-05-29T16:30:49+0000

Try

 df1$counties <- sub('^[^,]+,', '', df1$polyname)