show_fit
: visualizing the fit results
PyBDSF includes a task named show_fit
that allows the user to quickly check the results of the process_image
task. Use inp show_fit
to list the parameters:
SHOW_FIT: Show results of fit. ================================================================================ broadcast ............ False : Broadcast Gaussian and source IDs and coordinates to SAMP hub when a Gaussian is clicked? ch0_flagged .......... False : Show the ch0 image with flagged Gaussians (if any) overplotted ch0_image ............. True : Show the ch0 image. This is the image used for source detection ch0_islands ........... True : Show the ch0 image with islands and Gaussians (if any) overplotted gmodel_image .......... True : Show the Gaussian model image gresid_image .......... True : Show the Gaussian residual image mean_image ............ True : Show the background mean image pi_image ............. False : Show the polarized intensity image psf_major ............ False : Show the PSF major axis variation psf_minor ............ False : Show the PSF minor axis variation psf_pa ............... False : Show the PSF position angle variation rms_image ............. True : Show the background rms image smodel_image ......... False : Show the shapelet model image source_seds .......... False : Plot the source SEDs and best-fit spectral indices (if image was processed with spectralindex_do = True). Sources may be chosen by ID with the 'c' key or, if ch0_islands = True, by picking a source with the mouse sresid_image ......... False : Show the shapelet residual image
Each of the parameters is described in detail below.
- broadcast
This parameter is a Boolean (default is
False
) that determines whether the Gaussian and source IDs and coordinates are sent to a running SAMP Hub when a Gaussian is clicked on. Note that for the IDs to be useful, a catalog must have been sent to the SAMP hub previously using thewrite_catalog
task (withoutfile = 'SAMP'
).- ch0_flagged
This parameter is a Boolean (default is
False
) that determines whether to plot the ch0 image (the image used for source detection) with any flagged Gaussians overplotted.- ch0_image
This parameter is a Boolean (default is
True
) that determines whether to plot the ch0 image (the image used for source detection).- ch0_islands
This parameter is a Boolean (default is
True
) that determines whether to plot the ch0 image (the image used for source detection) with islands and Gaussians overplotted.- gmodel_image
This parameter is a Boolean (default is
True
) that determines whether to plot the Gaussian model image.- gresid_image
This parameter is a Boolean (default is
True
) that determines whether to plot the Gaussian residual image.- mean_image
This parameter is a Boolean (default is
True
) that determines whether to plot the background mean image.- pi_image
This parameter is a Boolean (default is
False
) that determines whether to plot the polarized intensity image.- psf_major
This parameter is a Boolean (default is
False
) that determines whether to plot the variation of the major axis of the PSF.- psf_minor
This parameter is a Boolean (default is
False
) that determines whether to plot the variation of the minor axis of the PSF.- psf_pa
This parameter is a Boolean (default is
False
) that determines whether to plot the variation of the position angle of the PSF.- rms_image
This parameter is a Boolean (default is
True
) that determines whether to plot the background rms image.- smodel_image
This parameter is a Boolean (default is
False
) that determines whether to plot the shapelet model image.- source_seds
This parameter is a Boolean (default is
False
) that determines whether to plot the source SEDs and best-fit spectral indices.- sresid_image
This parameter is a Boolean (default is
False
) that determines whether to plot the shapelet residual image.