Rows of a data.frame matching one or several keys

A row matches a key when its complete key is one of the keys, or when its first level is one of the keys (selection of a year without the quarter).

Usage

match_keys(df, vars, var_key, keys, sep = " / ")

Arguments

df

data.frame

vars

variables of each level (see vars_levels)

var_key

name of the variable containing the complete key

keys

vector of keys to keep

sep

separator between the levels

Value

logical vector

Examples

match_keys(mtcars,"cyl","cyl",4)
#>  [1] FALSE FALSE  TRUE FALSE FALSE FALSE FALSE  TRUE  TRUE FALSE FALSE FALSE
#> [13] FALSE FALSE FALSE FALSE FALSE  TRUE  TRUE  TRUE  TRUE FALSE FALSE FALSE
#> [25] FALSE  TRUE  TRUE  TRUE FALSE FALSE FALSE  TRUE