no rows to aggregate in R

Question

I have a column in my data that is split by poor, Average and Good. I'm looking to find the Max and the Min number in a different column when one of those categories is selected.

This is what I have for the code:

aggregate(as.numeric(data_gt$Category), list(exptCount=data_gt$Employment_Rate),max)

Is there an easier way to do this, even if it takes more commands to individually get the max min for each category?

Thanks for your help, I'm new to R so still learning the basics.

You're getting the error as indicated in the question title? Please add some data so the error may be demonstrated. See here for tips: http://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example — Matthew Lundberg, Nov 12 '13 at 03:42

score 1 · Answer 1 · answered Oct 25 '15 at 15:08

1

You can get this error message if you specified incorrect variable name (data_gt$Category instead of data_gt$category).

answered Oct 25 '15 at 15:08

Yevgen Yampolskiy

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no rows to aggregate in R

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