nl_tokens: Convert all the given hashes of features to numeric arrays using 0 for padding . If some features in some of the hashes do not exist - they will be added .
pl_tokens: function ( hashes ) { this . addFeaturess ( hashes ) ; var arrays = [ ] ; for ( var i = 0 ; i < hashes . length ; ++ i ) { arrays [ i ] = [ ] ; for ( var feature <mask> this . featureNameToFeatureIndex ) arrays [ i ] [ this . featureNameToFeatureIndex [ feature ] ] = hashes [ i ] [ feature ] || 0 ; } return arrays ; }