The .ignore_data() function is used to hide <AsIs> columns during
scale interactions in ggplot_build(). The .expose_data() function is
used to restore hidden columns.
Examples
data <- list(
data.frame(x = 1:3, y = I(1:3)),
data.frame(w = I(1:3), z = 1:3)
)
ignored <- .ignore_data(data)
str(ignored)
#> List of 2
#> $ :'data.frame': 3 obs. of 2 variables:
#> ..$ x : int [1:3] 1 2 3
#> ..$ .ignored:'data.frame': 3 obs. of 1 variable:
#> .. ..$ y: 'AsIs' int [1:3] 1 2 3
#> $ :'data.frame': 3 obs. of 2 variables:
#> ..$ z : int [1:3] 1 2 3
#> ..$ .ignored:'data.frame': 3 obs. of 1 variable:
#> .. ..$ w: 'AsIs' int [1:3] 1 2 3
.expose_data(ignored)
#> [[1]]
#> x y
#> 1 1 1
#> 2 2 2
#> 3 3 3
#>
#> [[2]]
#> z w
#> 1 1 1
#> 2 2 2
#> 3 3 3
#>