I am referring to base::rowsum(), not rowSums(). For some reason I cannot
access it's help on my computer but the online documentation (R-devel
version) states:
Value
A matrix or data frame containing the sums. There will be one row per
unique value of group
Period. Above, the argument 'reorder
> 'rowsum()' seems to add row names to the resulting matrix, corresponding to
> the respective 'group' values. This is very handy, but it is not documented.
> Should the documentation mention it so it could be relied upon as part of API?
If you're referring to base::rowSums, the 'value' section o
