def _argcheck(self, *args):
cond = <NUM_LIT:1><EOL>for arg in args:<EOL><INDENT>cond = logical_and(cond, (asarray(arg) > <NUM_LIT:0>))<EOL><DEDENT>return cond<EOL>
Default check for correct values on args and keywords.

        Returns condition array of 1's where arguments are correct and
         0's where they are not.