double function ( ) { return counter ; }
here we count the sum of all entries concode_field_sep double entropy concode_elem_sep double purity concode_elem_sep double counter concode_elem_sep HashMap<String,MutableDouble> map concode_field_sep double entropy concode_elem_sep double getEntropy concode_elem_sep int size concode_elem_sep Collection<MutableDouble> entrySet concode_elem_sep double getLog2 concode_elem_sep MutableDouble get concode_elem_sep void increment concode_elem_sep String toString concode_elem_sep double getPurity concode_elem_sep Collection<String> keySet concode_elem_sep void incrementOrAdd