[R] mapply on multiple data frames
webbe at ufl.edu
Tue Jun 11 08:07:10 CEST 2013
I am wondering about using the mapply function to multiple data frames. Specifically, I would like to do a t-test on a subset of multiple data frames. All data frames have the same structure.
Here is my code so far:
This tells me that $ operator is invalid for atomic vectors. I have tried shifting to notation using [ ,] to denote columns, but that gives me this error: incorrect number of dimensions.
Thank you in advance,
More information about the R-help