igroupAnys {Rigroup}R Documentation

calculates logical Any for small integer groups of logical vectors

Description

This function allows a user to quickly calculate the logical Any for each small integer group of a logical vector .

Usage

igroupAnys(x,i,na.rm=TRUE)

Arguments

x A logical data vector
i A small integer vector indicating group membership 1:ngroups
na.rm if TRUE remove NAs before use (defaults to TRUE)

Details

This package provides a fast implementation for calculating Anys for each group in a logical data vector where a small integer vector (1:number of groups) indicates group membership. na.rm is used to determine how NAs are handled. The return value is a vector with length(number of groups).

Value

igroupAnys: Returns a vector with length equal to the number of groups.

Author(s)

K. Hendricks with lots of help from B. Dunlap

References

None

See Also

igroupAlls igroupCounts igroupMaxs igroupMeans igroupMins igroupProds igroupRanges igroupSums

Examples

y <- rnorm(100)
i <- rep(1:25,4)
x <- (y > 1.0)
anys <- igroupAnys(x,i)
anys

[Package Rigroup version 0.83.0 Index]