log _ 2 n with log 0 = 0 semantics concode_field_sep PlaceHolder placeHolder concode_field_sep double min concode_elem_sep double entropy concode_elem_sep double max concode_elem_sep double mean concode_elem_sep void main concode_elem_sep double stDev
double function ( double arg0 ) { if ( arg0 == 0.0 ) { return 0.0 ; } else { return Math . log ( arg0 ) / Math . log ( 2 ) ; } }