Create px classification from .vs and .agg files
px_classification_from_path(vs_path, agg_paths)
A classification object
Optional. Path to a values set (.vs) file.
Optional.
If NULL, aggregation paths are automatically taken from the [Aggreg] field in the .vs file.
Use a vector of paths to one or more aggregation files (.agg) to manually choose aggregations.
Use character(0) if aggregations from the .vs files should not be added automatically.