pymovements.gaze.transforms.norm

pymovements.gaze.transforms.norm(*, columns: tuple[str, str]) → Expr

Take the norm of a 2D series.

The norm is defined by \(\sqrt{x^2 + y^2}\) with \(x\) being the yaw component and \(y\) being the pitch component of a coordinate.

Parameters:

columns (tuple[str, str]) – Columns to take norm of.

Returns:

The respective polars expression.

Return type:

pl.Expr