Other distances: dist.*

haversine

haversine(
    other: IntoExpr, unit: Literal["km", "miles"] = "km"
) -> pl.Expr

Returns haversine distance between two structs with the keys latitude, longitude.

Example

df = pl.DataFrame(
        {
            "x": [{"latitude": 38.898556, "longitude": -77.037852}],
            "y": [{"latitude": 38.897147, "longitude": -77.043934}],
        }
    )
df.select(pld.col('x').dist.haversine('y', 'km').alias('haversine'))

shape: (1, 1)
┌───────────┐
│ haversine │
│ ---       │
│ f64       │
╞═══════════╡
│ 0.549156  │
└───────────┘