countNAs {MQMF}

countNAs used in apply to count the number of NAs in a vector

Description

countNAs used in the base function 'apply', or 'tapply' to count the number of NAs in a vector

Usage

countNAs(invect)

Arguments

invect

vector of values

Value

A single value of zero or the number of NAs

Examples

x <- matrix(trunc(runif(20)*10),nrow=4,ncol=5)
diag(x) <- NA
print(x)
apply(x,1,countNAs)