question: public Distribution ( Instances source ) throws Exception { m_perClassPerBag = new double [ 1 ] [ 0 ] ; m_perBag = new double [ 1 ] ; totaL = 0 ; m_perClass = new double [ source . numClasses ( ) ] ; m_perClassPerBag [ 0 ] = new double [ source . numClasses ( ) ] ; Enumeration < Instance > enu = source . enumerateInstances ( ) ; while ( enu . hasMoreElements ( ) ) { add ( 0 , enu . nextElement ( ) ) ; } }
target:  Creates a distribution with only one bag according to instances in source.