# skfolio.utils.stats.cs_rank ### skfolio.utils.stats.cs_rank(a, axis=0) Cross-sectional rank along an axis. Ranks are 1-based. `NaN` values remain `NaN` and are excluded from the ranking (i.e. only finite values receive ranks). * **Parameters:** **a** *ndarray* : Input array. **axis** *int, default=0* : Axis along which to rank. * **Returns:** **ranks** *ndarray* : Same shape as *a*, dtype `float64`.