polars.Expr.round#
- Expr.round(decimals: int = 0) Expr [source]#
Round underlying floating point data by
decimals
digits.- Parameters:
- decimals
Number of decimals to round by.
Examples
>>> df = pl.DataFrame({"a": [0.33, 0.52, 1.02, 1.17]}) >>> df.select(pl.col("a").round(1)) shape: (4, 1) ┌─────┐ │ a │ │ --- │ │ f64 │ ╞═════╡ │ 0.3 │ │ 0.5 │ │ 1.0 │ │ 1.2 │ └─────┘