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Last modified: December 2013

URL: http://cxc.harvard.edu/sherpa/ahelp/set_pileup_model.html
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AHELP for CIAO 4.9 Sherpa v1

set_pileup_model

Context: modeling

Synopsis

Set a pileup model to be used in fitting a dataset

Syntax

set_pileup_model( [id], model] )

Description

The set_pileup_model command establishes a pileup model to be used in fitting the data. There is one pileup model available in Sherpa: jdpileup ("ahelp jdpileup")

  • id - the id of the dataset; if not given, uses the default dataset id (id=1 by default, see "ahelp get_default_id")
  • model - the name of the pileup model

The pileup parameter values are reported with the source model parameters after a fit:

     jdp.alpha      0.5
     jdp.f          1
     intrin.nh      3.14395
     power.phoindex   0.621892
     power.norm     1348.33

Example 1

sherpa> set_pileup_model(jdpileup.jdp)

An instance of the pileup model named "jdp" is established for the default data set.

Example 2

sherpa> set_pileup_model( 2, mypileup )

A previously-established pileup model called "mypileup" is set for dataset 2.

Bugs

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

See Also

confidence
set_conf_opt, set_covar_opt, set_proj_opt
data
get_bkg_plot, set_areascal, set_arf, set_backscal, set_bkg, set_coord, set_counts, set_data, set_exposure, set_grouping, set_quality, set_rmf, set_staterror, set_syserror
filtering
set_filter
info
list_model_ids, show_bkg_model, show_bkg_source
methods
set_iter_method, set_iter_method_opt, set_method, set_method_opt
modeling
add_model, add_user_pars, clean, create_model_component, delete_bkg_model, delete_model, delete_model_component, get_model, get_model_autoassign_func, get_model_component, get_model_component_image, get_model_component_plot, get_model_plot, get_num_par, get_order_plot, get_par, get_pileup_model, get_source, get_source_component_image, get_source_component_plot, image_model, image_model_component, image_source, image_source_component, integrate, integrate1d, link, load_table_model, load_template_model, load_user_model, normal_sample, reset, save_model, save_source, set_bkg_model, set_full_model, set_model_autoassign_func, set_par, set_source, set_xsabund, set_xscosmo, set_xsxsect, set_xsxset, t_sample, uniform_sample
plotting
get_lrt_plot, get_lrt_results, get_pvalue_plot, get_pvalue_results, plot_cdf, plot_model, plot_model_component, plot_pdf, plot_pvalue, plot_scatter, plot_source, plot_source_component, plot_trace
psfs
delete_psf, load_conv
saving
save_delchi, save_resid
statistics
set_prior, set_sampler, set_sampler_opt, set_stat
utilities
calc_chisqr, calc_energy_flux, calc_model_sum, calc_photon_flux, calc_source_sum, calc_stat, eqwidth, set_analysis, set_default_id
visualization
contour_model, contour_ratio, contour_resid, get_ratio, get_resid, image_setregion

Last modified: December 2013
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