i_get_equal_wording {ilabelled}

get variable names by wording

Description

return all variable names by wordings

one, several, or all wordings can be looked up

Usage

i_get_equal_wording(x, wording = NULL)

Arguments

x

data.frame

wording

one or more wordings as character vector. when NULL return all variable names by all wordings in data

Value

named list or NA. return named list with one list entry for each wording. when no wording in data or no match for wordings, return NA.