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1.028089
2007 Mar 07
5
how to "apply" functions to unbalanced data in long format by factors......cant get "by" or "aggregate" to work
Hello R users,
Problem.......I do not understand how to use "aggregate","by", or the
appropriate "apply" to perform a function on data with more than one
factor on unbalanced data...
I have a data frame in the long format that does not contain balanced
data. The ID is a unique identifier corresponding to the experimental
unit that will later be examined by ANOVA,