+casts << {:long=>'title', :short=>'T', :type=>'string', :mandatory=>false, :default=>title, :allowed=>nil, :disallowed=>nil}
+casts << {:long=>'xlabel', :short=>'X', :type=>'string', :mandatory=>false, :default=>xlabel, :allowed=>nil, :disallowed=>nil}
+casts << {:long=>'ylabel', :short=>'Y', :type=>'string', :mandatory=>false, :default=>ylabel, :allowed=>nil, :disallowed=>nil}
+
+options = Biopieces.options_parse(ARGV, casts)