Expr.not_

methodView source ↗

def not_() -> Expr

Categories: logic

Negate a boolean expression.

Examples

>>> import tabsdata as td
>>>
>>> tf: td.TableFrame ...
>>>
>>> tf = tf.select(td.col("val"), td.col("val").not_().alias("not"))
>>>
┌───────┬───────┐
│ val   ┆ not   │
│ ---   ┆ ---   │
│ bool  ┆ bool  │
╞═══════╪═══════╡
│ true  ┆ false │
│ false ┆ true  │
│ null  ┆ null  │
└───────┴───────┘