tapplydf | R Documentation |
a friendly version of tapply for dataframes
tapplydf(data, select = names(data), myfactor, ..., na.rm = c(TRUE,
FALSE, NULL)[1])
data |
dataframe |
select |
character, column names to calc |
myfactor |
a colname as factor |
... |
function to apply to data |
na.rm |
logical |
a dataframe
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