uniform_probe_derivatives_kind ============================== .. py:function:: t3toolbox.backend.uniform_fitting.uniform_probe_derivatives_kind(x0_data, order, weight = None, chunk_size = 100) .. code-block:: python def uniform_probe_derivatives_kind( x0_data: typ.Tuple, order: int, weight: typ.Optional[typ.Sequence[float]] = None, chunk_size: typ.Optional[int] = 100, # W-chunk size for the 𝒥ᵀ assembly (docs/chunking.md) ) -> bfit.SamplingKind: # sample = (ww, pp) The uniform **probe-derivatives** ``SamplingKind`` -- the twin of :py:func:`t3toolbox.backend.fitting.probe_derivatives_kind`. The forward / residual are the **packed** probe-derivative jets ``(d,)+(order+1,)+W+C+(N,)`` (order at axis 1, after the mode index ``d``), so the per-order weight ``ω`` is built with ``order_axis=1`` and ``sumsq`` / ``transpose`` are overridden to weight the correct axis (the inherited order-leading ``aw`` would broadcast ``ω`` over ``d``).