A single entry of a spec's transform array.
transform
Only filter is modelled — it is the one transform that identifies the subset of the data a layer draws, and therefore the only one that can name a per-group layer. Every other transform (density, aggregate, calculate, …) is passed over.
filter
density
aggregate
calculate
Optional
A single entry of a spec's
transformarray.Only
filteris modelled — it is the one transform that identifies the subset of the data a layer draws, and therefore the only one that can name a per-group layer. Every other transform (density,aggregate,calculate, …) is passed over.