def range(self, index, *args):
self.data['<STR_LIT>'].append('<STR_LIT>'%(index,<EOL>'<STR_LIT:U+002C>'.join(map(smart_str, args))))<EOL>return self.parent<EOL>
Set the range of each axis, one at a time
args are of the form <start of range>,<end of range>,<interval>
APIPARAM: chxr