hutilscpp (version 0.3.0)

sum_isna: Number of missing values

Description

The count of missing values in an atomic vector, equivalent to to sum(is.na(x)).

Usage

sum_isna(x, do_anyNA = TRUE)

Arguments

x

An atomic vector.

do_anyNA

Should anyNA(x) be executed before an attempt to count the NA's in x one-by-one? By default, set to TRUE, since it is generally quicker. It will only be slower when NA is rare and occurs late in x.

Examples

# NOT RUN {
sum_isna(c(1:5, NA))
# }