Manipulation

TableFrame.cast	Cast columns to a new data type.
TableFrame.drop_nans	Drop rows with NaN values.
TableFrame.drop_nulls	Drop rows with null values.
TableFrame.fill_nan	Replace all NaN values in the TableFrame with the given value.
TableFrame.fill_null	Replace all null values in the TableFrame with the given value.
Expr.alias	Set the name for a column or expression.
Expr.fill_nan	Replace NaN values with the given value.
Expr.fill_null	Replace null values with the given value.