Function estimatePSMatching

estimatePSMatching(
    data: number[][],
    treatmentIdx: number,
    outcomeIdx: number,
    covariateIndices?: number[],
    seed?: number,
): { ate: number; se: number }
Propensity Score Matching ATE.

Matches each treated unit to its nearest control neighbor by propensity score.
Parameters
- data: number[][]
- treatmentIdx: number
- outcomeIdx: number
- covariateIndices: number[] = []
- Optionalseed: number
Returns { ate: number; se: number }
- Defined in pipeline/src/infer/effect-estimation.ts:369