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aggreg
2012 Feb 23
2
Aggregate with Function List ?
R Experts
I wish to tabulate into one data frame statistics summarizing
concentration data. The summary is to include mean, standard
deviation, median, min and max. I wish to have summaries by Dose, Day
and Time. I can do this by calling aggregate once for each of the
statistics (mean, standard deviation, median, min and max) and then
execute 4 merges to merging the 5 data frames into