leastsquare_3d¶
-
astropy.modeling.statistic.
leastsquare_3d
(measured_vals, updated_model, weights, x, y, z)[source]¶ Least square statistic with optional weights. Safer than the general
leastsquare()
for 3D models by avoiding numpy methods that support broadcasting.- Parameters
- measured_vals
ndarray
Measured data values.
- updated_model
Model
Model with parameters set by the current iteration of the optimizer.
- weights
ndarray
or None Array of weights to apply to each residual.
- x
ndarray
Independent variable “x” on which to evaluate the model.
- y
ndarray
Independent variable “y” on which to evaluate the model.
- z
ndarray
Independent variable “z” on which to evaluate the model.
- measured_vals
- Returns
- resfloat
The sum of least squares.
See also