leastsquare¶

astropy.modeling.statistic.leastsquare(measured_vals, updated_model, weights, x, y=None)[source]¶

Least square statistic with optional weights.

Parameters

measured_valsndarray: Measured data values.
updated_modelModel: Model with parameters set by the current iteration of the optimizer.
weightsndarray: Array of weights to apply to each residual.
xndarray: Independent variable “x” to evaluate the model on.
yndarray, optional: Independent variable “y” to evaluate the model on, for 2D models.

Returns