Returns the most frequently observed features in `features_by_layer`. If two features are observed at the same frequency their median index will be used to break the tie. If `nfeatures` is not specified, all features in `common_features` are returned.
.GetConsensusFeatures(features_by_layer, common_features, nfeatures = NULL)
A 2D named vector containing mapping each layer to it's corresponding variable features.
The intersection of features across all layers.
The number of variable features to return.