This helper function makes it easy to change tidy data into a tidy(er) format that can be used by geom_parallel_sets.
gather_set_data(data, x, id_name = "id")
A tidy dataframe with some categorical columns
The columns to use for axes in the parallel sets diagram
The name of the column that will contain the original index of the row.
A data.frame
data <- reshape2::melt(Titanic)
head(gather_set_data(data, 1:4))
#> Class Sex Age Survived value id x y
#> 1 1st Male Child No 0 1 1 1st
#> 2 2nd Male Child No 0 2 1 2nd
#> 3 3rd Male Child No 35 3 1 3rd
#> 4 Crew Male Child No 0 4 1 Crew
#> 5 1st Female Child No 0 5 1 1st
#> 6 2nd Female Child No 0 6 1 2nd