cumall: Cumulativate versions of any, all, and mean
Description
dplyr adds cumall(), cumany(), and cummean() to complete
R's set of cumulate functions to match the aggregation functions available
in most databases
Usage
cumall(x)cumany(x)
cummean(x)
Arguments
x
For cumall() and cumany(), a logical vector; for
cummean() an integer or numeric vector