Bugs: plot_psf - Sherpa 4.1

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Bugs

plot_psf returns an error with 1-D and radial profile PSFs.

If the plot_psf (S-Lang or Python help) command is used to plot a 1-D or radial profile PSF model, the following error message is returned:

sherpa>  plot_psf()
IndexError: invalid index to scalar variable.

The plot_psf command should work properly the first time it is called in a Sherpa session with these models, but once other commands are issued, all subsequent calls to plot_psf will return this error. This bug will be fixed in a future release.