Add a row for each unused factor level to ensure plotly displays all levels in the legend.

Add a row for each unused factor level to ensure plotly displays all levels in the legend.

add_unused_levels(data, var)

Arguments

data

A tibble, dataframe or sf object. Required input.

var

A variable of class factor.

Value

A tibble, dataframe or sf object. Required input.

Examples

library(palmerpenguins)
#> 
#> Attaching package: ‘palmerpenguins’
#> The following objects are masked from ‘package:datasets’:
#> 
#>     penguins, penguins_raw