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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 data.frame
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.
data <- reshape2::melt(Titanic) head(gather_set_data(data, 1:4))
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