Last modified: December 2020

URL: https://cxc.cfa.harvard.edu/sherpa/ahelp/set_counts.html
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AHELP for CIAO 4.13 Sherpa v1

set_counts

Context: data

Synopsis

Set the dependent axis of a data set.

Syntax

set_counts(id, val=None, bkg_id=None)

Alias: set_dep

id - int or str, optional
val - array
bkg_id - int or str, optional

Examples

Example 1

Create a 1D data set with values at (0,4), (2,10), (4,12), (6,8), (8,2), and (10,12):

>>> dataspace1d(0, 10, 2, dstype=Data1D)
>>> set_dep([4, 10, 12, 8, 2, 12])

Example 2

Set the values for the source and background of the data set 'src':

>>> set_dep('src', y1)
>>> set_dep('src', bg1, bkg_id=1)

PARAMETERS

The parameters for this function are:

Parameter Definition
id The data set to use. If not given then the default identifier is used, as returned by `get_default_id` .
val The array of values for the dependent axis.
bkg_id Set to identify which background component to set. The default value ( none ) means that this is for the source component of the data set.

Notes

The function does not follow the normal Python standards for parameter use, since it is designed for easy interactive use. When called with a single un-named argument, it is taken to be the `val` parameter. If given two un-named arguments, then they are interpreted as the `id` and `val` parameters, respectively.


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
set_areascal, set_arf, set_backscal, set_bkg, set_coord, set_data, set_dep, set_exposure, set_grouping, set_quality, set_rmf, set_staterror, set_syserror
filtering
set_filter
methods
set_iter_method, set_iter_method_opt, set_method, set_method_opt
modeling
get_par, get_xsabund, get_xscosmo, get_xsxsect, get_xsxset, set_bkg_model, set_bkg_source, set_full_model, set_model, set_par, set_pileup_model, set_source, set_xsabund, set_xscosmo, set_xsxsect, set_xsxset
statistics
set_prior, set_sampler, set_sampler_opt, set_stat
utilities
set_analysis, set_default_id
visualization
image_setregion