Expr.alias

methodView source ↗

def alias(name: str) -> TdExpr

Categories: manipulation

Set the name for a column or expression.

Parameters

parameter

name

Column or expression new name. The name must be a word ([A-Za-z_][A-Za-z0-9_]*) of up to 100 characters.

Examples

>>> import tabsdata as td
>>>
>>> tf: td.TableFrame ...
>>>
>>> tf.select(td.col("age"), td.col("age").alias("Age"))
>>>
┌──────┬──────┐
│ age  ┆ Age  │
│ ---  ┆ ---  │
│ i64  ┆ i64  │
╞══════╪══════╡
│ 1    ┆ 1    │
│ 15   ┆ 15   │
│ 18   ┆ 18   │
│ 60   ┆ 60   │
│ 60   ┆ 60   │
│ 75   ┆ 75   │
│ null ┆ null │
└──────┴──────┘