get_delchi_prof_prefs

Synopsis

The plot preferences for radial or elliptical profiles of the residuals (data - model)/error to imaging data.

get_delchi_prof_prefs()

Description

The get_delchi_prof_prefs() command returns the preferences for the residuals in plots created by the prof_delchi() and prof_fit_delchi() commands. Changing the values will not change existing plots, only new plots created after the change was made. For example

sherpa> get_delchi_prof_prefs()["xlog"] = True

will cause any new plots to use logarithmic scaling for the X axis.

Loading the routine

The routine can be loaded into Sherpa by saying:

from sherpa_contrib.profiles import *

Example

sherpa> prof_delchi()
sherpa> plt.xscale('log')
...
sherpa> prefs = get_delchi_prof_prefs()
sherpa> prefs['xlog'] = True
sherpa> prefs['xaxis'] = False
sherpa> prof_delchi()

The preferences are set so that the x axis should be drawn using log scaling and no line is drawn at y=0. Setting the get_delchi_prof_prefs values only affects plots made after the change; to change an existing plot you need to use Matplotlib commands such as xscale().

Bugs

See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.

See Also

contrib

get_data_prof, get_data_prof_prefs, get_delchi_prof, get_fit_prof, get_model_prof, get_model_prof_prefs, get_resid_prof, get_resid_prof_prefs, get_source_prof, get_source_prof_prefs, plot_chart_spectrum, plot_marx_spectrum, prof_data, prof_delchi, prof_fit, prof_fit_delchi, prof_fit_resid, prof_model, prof_resid, prof_source, sherpa_profiles

data

get_arf_plot, get_bkg_chisqr_plot, get_bkg_delchi_plot, get_bkg_fit_plot, get_bkg_model_plot, get_bkg_plot, get_bkg_ratio_plot, get_bkg_resid_plot, get_bkg_source_plot

modeling

normal_sample, t_sample, uniform_sample

plotting

get_cdf_plot, get_energy_flux_hist, get_pdf_plot, get_photon_flux_hist, get_pvalue_plot, get_pvalue_results, get_split_plot, plot, plot_arf, plot_bkg, plot_bkg_chisqr, plot_bkg_delchi, plot_bkg_fit, plot_bkg_fit_delchi, plot_bkg_fit_resid, plot_bkg_model, plot_bkg_ratio, plot_bkg_resid, plot_bkg_source, plot_cdf, plot_chisqr, plot_data, plot_delchi, plot_energy_flux, plot_fit, plot_fit_delchi, plot_fit_resid, plot_model, plot_model_component, plot_order, plot_pdf, plot_photon_flux, plot_pvalue, plot_ratio, plot_resid, plot_scatter, plot_source, plot_source_component, plot_trace, set_xlinear, set_xlog, set_ylinear, set_ylog

psfs

plot_kernel

statistics

get_chisqr_plot, get_delchi_plot

visualization

contour_resid