ess.reflectometry.tools.combine_curves

ess.reflectometry.tools.combine_curves(curves, q_bin_edges=None)

Combines the given curves by interpolating them on a 1d grid defined by q_bin_edges and averaging over the provided reflectivity curves.

The averaging is done using a weighted mean where the weights are proportional to the variances.

Unless the curves are already scaled correctly they might need to be scaled using scale_reflectivity_curves_to_overlap() before calling this function.

All curves must be have the same unit for data and the Q-coordinate.

Parameters:

• curves (Sequence[DataArray] | DataGroup | Mapping[str, DataArray]) – the reflectivity curves that should be combined

• q_bin_edges (Variable | None, default: None) – the Q bin edges of the resulting combined reflectivity curve

Returns:

DataArray – A data array representing the combined reflectivity curve