Accessing the data used to create a plot

Virtually all of the plot_xxx functions have an associated get_xxx_plot function which returns a Pyton object containing the data that is used to create the plot. This can be used if you want to create your own version of the plot, or if you want to use the data for further analysis (accessing PHA data in units of keV or Angstrom can be surprisingly complex to do, so using the plot infrastructure is often the quickest way to get at the information). The data for multi-plot routines like plot_fit_resid is accessed with the individual component calls - so in this case get_fit_plot and get_resid_plot.

[New] New in CIAO 4.17 is the addition of the calc_model and calc_source routines which may provide better access to the model values rather than using get_model_plot.

The basic plots are supported:
Plot	Data access	Comments
plot_chisqr	get_chisqr_plot
plot_data	get_data_plot
plot_delchi	get_delchi_plot
plot_fit	get_fit_plot	The return structure contains dataplot and modelplot attributes which contains the plotted data.
plot_kernel	get_kernel_plot
plot_psf	get_psf_plot
plot_ratio	get_ratio_plot
plot_resid	get_resid_plot

The background variants are also supported:
Plot	Data access	Comments
plot_bkg_chisqr	get_bkg_chisqr_plot
plot_bkg_delchi	get_bkg_delchi_plot
plot_bkg_fit	get_bkg_fit_plot	The return structure contains dataplot and modelplot attributes which contains the plotted data.
plot_bkg	get_bkg_plot
plot_bkg_ratio	get_bkg_ratio_plot
plot_bkg_resid	get_bkg_resid_plot
plot_bkg_source	get_bkg_source_plot

Plotting the model.
Plot	Data access
plot_model	get_model_plot
plot_source	get_source_plot
plot_model_component	get_model_component_plot
plot_source_component	get_source_component_plot
plot_order	get_order_plot

There are also a number of specialized commands:

Plot	Data access
plot_arf	get_arf_plot
plot_rmf	get_rmf_plot
plot_pvalue	get_pvalue_plot
plot_pdf	get_pdf_plot
plot_cdf	get_cdf_plot
plot_scatter	get_scatter_plot
plot_trace	get_trace_plot