Sometimes I'm confident in the centroiding (from SExtractor or whatever) and just want to fit the amplitude so that I can make an image with the object subtracted out, and don't want to wait for the time-intensive 3-step MCMC fit of xy, amplitude, xy+amplitude. Also, sometimes I find that the MCMC fit runs off into lalaland and doesn't actually centroid on the source (not sure what's up with that), in which case the fit isn't useful.
It would be really nice if there was a way to ask MCMCfit to only fit the amplitude, maybe with a fitXY=True/False keyword.
I tried implementing this, but failed misserably.
Sometimes I'm confident in the centroiding (from SExtractor or whatever) and just want to fit the amplitude so that I can make an image with the object subtracted out, and don't want to wait for the time-intensive 3-step MCMC fit of xy, amplitude, xy+amplitude. Also, sometimes I find that the MCMC fit runs off into lalaland and doesn't actually centroid on the source (not sure what's up with that), in which case the fit isn't useful.
It would be really nice if there was a way to ask MCMCfit to only fit the amplitude, maybe with a fitXY=True/False keyword.
I tried implementing this, but failed misserably.