Facet
Faceting allows you to repeat a visual across all values of a column, and provide a way to create hierarchical axes.
For example, the following chart is grouping the Olympic season (Summer, Winter) by each region (Australia, Austria, etc.). This is achieved by putting region
in the Rows
field under Facet
.
Layouts for tables and heatmaps
Another common way to use facet is to create tables or cohort charts. The following example uses the Rows
to show two columns in the data, and the Cols
to generate the columns in the table.
In this case, the Rows aren't hierarchies but by placing them under Facet
as Rows
we can have as many columns as we want.
Layouts for repeated marks
A third way to use facet is if you want to repeat a mark across several different categories. For example, in this chart a track's danceability and energy is repeated across each individual artist. This is achieved by putting main_artist
in the Rows
field under Facet
.
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