h2o-py/h2o/frame.py
def toupper(self):
        """
        Translate characters from lower to upper case for a particular column.

        :returns: new H2OFrame with all strings in the current frame converted to the uppercase.
        """
        return H2OFrame._expr(expr=ExprNode("toupper", self), cache=self._ex._cache)
def toupper(self):
        """
        Translate characters from lower to upper case for a particular column.

        :returns: new H2OFrame with all strings in the current frame converted to the uppercase.
        """
        return H2OFrame._expr(expr=ExprNode("toupper", self), cache=self._ex._cache)
Translate characters from lower to upper case for a particular column.

        :returns: new H2OFrame with all strings in the current frame converted to the uppercase.