Description Usage Arguments Examples
Apply a function to clusters of rows in a data frame and return the result so it is conformable with the data frame created by 'up' applied to the same data frame and same clustering formula
1 |
object |
a data frame as source for an aggregated result |
form |
a one-sided formula identifying the variable(s) in |
FUN |
a function to be applied to each data frame consisting of a
cluster of rows of 'object'. The most common choice is |
... |
other arguments to FUN, frequently when FUN is 'with', an expression using variable names in 'object' |
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