get variable names in a formula and data

get variable names in a formula and data

Usage

formula_varname(formula, data)

Arguments

formula

A formula.

data

A data.frame, tibble or sf object of observation data.

Value

A list.

yname

Independent variable name

xname

Dependent variable names

Examples

gzma = sf::read_sf(system.file('extdata/gzma.gpkg',package = 'sdsfun'))
formula_varname(PS_Score ~ EL_Score + OH_Score, gzma)
#> $yname
#> [1] "PS_Score"
#> 
#> $xname
#> [1] "EL_Score" "OH_Score"
#> 
formula_varname(PS_Score ~ ., gzma)
#> $yname
#> [1] "PS_Score"
#> 
#> $xname
#> [1] "EL_Score" "OH_Score" "IL_Score"
#>