Synopsis
Utility routines for Sherpa (CIAO contributed package).
Syntax
from sherpa_contrib.utils import *
Description
The sherpa_contrib.utils module provides utility routines for Sherpa users, and is provided as part of the CIAO contributed scripts package.
Loading the routines
The module can be loaded into Sherpa by saying either of:
from sherpa_contrib.utils import * from sherpa_contrib.all import *
where the second form loads in all the Sherpa contributed routines, not just the utils module.
Contents
The utils module currenly provides the routines:
| Function | Description |
|---|---|
| renorm() | Change the normalization of a model to match the data. |
| save_instmap_weights() | Write out the model spectrum in the form required by mkinstmap |
| plot_instmap_weights() | Plot up the model spectrum in the form required by mkinstmap |
| get_instmap_weights() | return the model spectrum in the form required by mkinstmap |
| estimate_weighted_expmap() | Return the estimated exposure map value by weighting the ARF by the spectral model |
See the ahelp file for the routine and the contributed scripts page for further information.
Changes in the scripts 4.14.0 (December 2021) release
The renorm routine has seen minor improvements.
Changes in the scripts 4.11.4 (2019) release
Plotting can now use matplotlib
The plot_instmap_weights() routine now uses the Sherpa plot backend (controlled by the plot_pkg setting in a user's ~/.sherpa.rc file), rather than always using ChIPS.
Changes in the scripts 4.8.2 (January 2016) release
New routine
The renorm() function was added.
Fixed estimate_weighted_expmap
The estimate_weighted_expmap() routine has been updated to work in CIAO 4.8.
Changes in the October 2012 release
The save_instmap_weights routine
The file created by this command now includes some basic metadata for use with fluximage, flux_obs, and merge_obs.
Bugs
See the bugs pages for an up-to-date listing of known bugs.