rowr (version 1.1.3)

count: A more versatile form of the T-SQL count() function.

Description

Implementation of T-SQL count and Excel COUNTIF functions. Shows the total number of elements in any number of data objects altogether or that match a condition.

Usage

count(..., condition = (function(x) TRUE))

Arguments

...

an arbitrary number of R objects

condition

a 1 argument condition

Examples

count(c(NA,1,2))
count(c(NA,1,2),is.na)
count(c(NA,1,2),list('A',4),cbind(1,2,3))
count(c(NA,1,2),list('A',4),cbind(1,2,3),condition=is.character)