Re: gain command

From: Efrain Gatuzz <egatuzz_at_email.domain.hidden> Is there an equivalent command on ISIS to the gain command from
> XSPEC? In order to modify a response file gain. I want to
> shifts the energies on which the response matrix is defined and
> shifts the effective area curve too.

The gainshift kernel should provide the equivalent
functionality.

To discover this using the interactive help system one can do
the following. To find defined symbols that include the string
"gain" you can use 'apropos'.  For example:

  isis> apropos gain

  Found 2 function matches in namespace Global:
  gainshift                  gainshift_fit              

  Found 1 variable match in namespace Global:
  EAGAIN

The man page for 'gainshift' briefly describes what it does and
how to use it. For example, to apply a gain shift to dataset 1,
you can do something like:

    set_kernel (1, "gainshift");

This adds 'gainshift' parameters 'slope' and 'intercept'
to the current model.

Thanks,
-John


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