webbpsf_ext.robust.checkfit¶
- webbpsf_ext.robust.checkfit(inputData, inputFit, epsilon, delta, BisquareLimit=6.0)[source]¶
Determine the quality of a fit and biweights. Returns a tuple with elements:
Robust standard deviation analog
Fractional median absolute deviation of the residuals
Number of input points given non-zero weight in the calculation
Bisquare weights of the input points
Residual values scaled by sigma
This function is based on the rob_checkfit routine from the AstroIDL User’s Library.