na_prop {naflex}

Calculate missing value properties

Description

A set of functions for calculating missing values properties of a vector.

• na_prop: The proportion of missing values

• na_n: The number of missing values

• na_consec: The maximum number of consecutive missing values

• na_non_na: The number of non-missing values

Usage

na_prop(x)

na_n(x)

na_consec(x)

na_non_na(x)

Arguments

x

A vector to calculate the missing values property of.

Details

These functions are used by na_omit_if to omit missing values conditionally on the value of these properties. They are also useful summaries in their own right.

Value

Each function returns a number: a proportion (0 to 1) or a count.

Examples

na_prop(c(1, 2, NA, 4))

na_prop(c(1:9, NA))

na_n(c(1, 2, NA, 4, NA, NA, 7))

na_n(c(1:9, NA, NA))

na_consec(c(1, NA, NA, NA, 2, NA, NA, 7))

na_consec(c(rep(NA, 5), 1:2, rep(NA, 6)))

na_non_na(c(1, 2, NA, 4, NA, NA, 7))

na_non_na(c(1:9, NA, NA))