Maps each context encountered (i.e., every file that contains something associated with the feature) to a unique id, used in the valueInfoMap.
Readonly
filepathThe input file which has been clustered
Counts which contexts contained which values of a feature.
For example, that <-
occurred in files with ids [12, 42, 19, 19]
(i.e., the context with the id 19 contained it twice).
Produced by clusterStatisticsOutput