capply {rmutil} | R Documentation |
A Fast Simplified Version of tapply
Description
a fast simplified version of tapply
Usage
capply(x, index, fcn=sum)
Arguments
x |
x |
index |
index |
fcn |
default sum |
Details
a fast simplified version of tapply
Value
Returns ans
where for(i in split(x,index))ans <- c(ans,fcn(i))
.
[Package rmutil version 1.1.10 Index]