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 & cumany, a logical vector; for
cummean an integer or numeric vector