plot

Synopsis

Plot multiple objects (data, model, residuals, etc.)

plot(plot1, [id1] ... [plotn, idn])

Description

The plot command creates plots of multiple Sherpa objects.

• plot1 ... plotn - the type of plot: arf, bkg, bkgchisqr, bkgdelchi, bkgfit, bkgmodel, bkgratio, bkgresid, bkgsource, chisqr, data, delchi, fit, kernel, model (convolved source model), psf, ratio, resid, or source (unconvolved source model).
• id1 ... idn - the id of the dataset to use for each plot; if not given, uses the default dataset id (id=1 by default, see "ahelp get_default_id")

Each plot is displayed in a separate plotting area within a ChIPS window. If a plotting window exists, it is cleared before the plots are drawn.

ChIPS commands may be used within Sherpa to modify plot characteristics and create hardcopies; refer to the ChIPS website for information.

There are also individual commands to create specific types of plots ("ahelp -k plot").

Individual Plotting Commands

Example 1

sherpa> plot("data", "model")

Plot the data and the convolved source model for the default dataset. If the data set is grouped, the model will also be grouped (use plot_model to plot the ungrouped model with the grouped data).

Example 2

sherpa> plot("data", "src", "resid", "src")

Plot the data and residuals for data set "src".

Example 3

sherpa> plot("data", 1, "data", "src", "model", 1, "model", "src")
sherpa> plot("data", "data", "src", "model", "model", "src")

These commands are two equivalent ways of plotting data for id 1, data for "src", model for id 1, and model for "src".

Note that the default id (1, in this case) may be omitted even in the middle of the plot() command.

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_delchi_prof_prefs, 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, prof_data, prof_delchi, prof_fit, prof_fit_delchi, prof_fit_resid, prof_model, prof_resid, prof_source

data

get_arf_plot, get_bkg_plot

modeling

normal_sample, t_sample, uniform_sample

plotting

get_energy_flux_hist, get_lrt_plot, get_lrt_results, get_photon_flux_hist, get_pvalue_plot, get_pvalue_results, get_split_plot, plot_arf, plot_bkg, plot_cdf, plot_chisqr, plot_data, plot_delchi, plot_energy_flux, plot_fit, plot_lrt, 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