Displaying 1 result from an estimated 1 matches for "tp3808391p3808538".
2011 Sep 12
2
function to include factors in summary data frame
Hi all,
I have a dataframe that includes data on individuals that are distributed
across multiple rows. I have aggregated the data using ddply, but I have
columns in the original data frame that are factors ( such as sites "A",
"B", and "C") that I would like to include in the new data frame. I have
done this in a clunky way using match() and a loop, but am