Check whether a column exists and is non-empty in a data frame

Mirrors the source's pervasive cap confirm v <var> / cap summ <var> guards: many financial and category variables are optional per variable_dictionary_v1.xlsx, and whole blocks of logic are silently skipped (not errored) when a given country's raw data lacks them.

Usage

has_column(data, var)

Arguments

data

A data frame.

var

Column name (string).

Value

TRUE if var is a column of data and has at least one non-missing value, FALSE otherwise.