set_areascal

sherpa.astro.ui.set_areascal(id, area=None, bkg_id: IdType | None = None) → None

Change the fractional area factor of a PHA data set.

The area scaling factor of a PHA data set is taken from the AREASCAL keyword, but it can be changed once the file has been loaded.

Parameters:

• id (int or str, optional) – The identifier for the data set to use. If not given then the default identifier is used, as returned by get_default_id.

• area (number) – The scaling factor.

• bkg_id (int, str, or None, optional) – Set to identify which background component to set. The default value (None) means that this is for the source component of the data set.

See also

get_areascal

Return the fractional area factor of a PHA data set.

set_backscal

Change the area scaling of a PHA data set.

set_exposure

Change the exposure time of a PHA 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 area parameter. If given two un-named arguments, then they are interpreted as the id and area parameters, respectively. The remaining parameters are expected to be given as named arguments.