; DOMODEL
;---------------------------------------------------------------
;! selects display of model function
;# ADVERB IMAGE-UTIL PLOT MODELING
;-----------------------------------------------------------------------
;;  Copyright (C) 1995, 2020
;;  Associated Universities, Inc. Washington DC, USA.
;;
;;  This program is free software; you can redistribute it and/or
;;  modify it under the terms of the GNU General Public License as
;;  published by the Free Software Foundation; either version 2 of
;;  the License, or (at your option) any later version.
;;
;;  This program is distributed in the hope that it will be useful,
;;  but WITHOUT ANY WARRANTY; without even the implied warranty of
;;  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;  GNU General Public License for more details.
;;
;;  You should have received a copy of the GNU General Public
;;  License along with this program; if not, write to the Free
;;  Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
;;  MA 02139, USA.
;;
;;  Correspondence concerning AIPS should be addressed as follows:
;;         Internet email: aipsmail@nrao.edu.
;;         Postal address: AIPS Project Office
;;                         National Radio Astronomy Observatory
;;                         520 Edgemont Road
;;                         Charlottesville, VA 22903-2475 USA
;-----------------------------------------------------------------------
;---------------------------------------------------------------
DOMODEL   LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
----------------------------------------------------------------
DOMODEL
Type: Adverb  (Logical,  > 0  =>  true)
Use:  True (1) means do something with models (e.g. slice fits or
               calibration source)
      Fales (-1) means do not do that something.
Null value:  false (-1).
Procedures:
   DOOSRO........Calibrating amplitude and phase, and imaging VLA data.
                 DOMODEL true means to use standard calirator models.
   PIPEAIPS......Calibrating amplitude and phase, and imaging VLA data.
                 DOMODEL true means to use standard calirator models.
   VLARUN........Calibrating amplitude and phase, and imaging VLA data.
                 DOMODEL true means to use standard calirator models.
Tasks:
   AGAUS.........Fits 1-dimensional Gaussians to absorption-line
                 spectra.  DOMODEL true means to plot individual fit
                 components on each spectrum plot.
   IMEAN.........Displays the mean & extrema and plots histogram of an
                 image.  DOMODEL true means to fit a Gaussian to the
                 histogram and then plot it.
   IMFIT.........Fits Gaussians to portions of an image.  DOMODEL true
                 means to write the fit results as Clean components
                 with the imput image.
   JMFIT.........Fits Gaussians to portions of an image.  DOMODEL true
                 means to write the fit results as Clean components
                 with the imput image.
   PCAL..........Determines instrumental polarization for UV data.
                 DOMODEL true means to use a model for the calibration
                 source, do not fit the calibrator Q and U.
   SL2PL.........Task to convert a Slice File to a Plot File.  DOMODEL
                 controls whether the model sum, components, or both
                 are plotted.
   SLPRT.........Task to print a Slice File.  DOMODEL true requests that
                 the model to be printed also.
   XBASL.........Fits and subtracts nth-order baselines from cube (x
                 axis).  DOMODEL true requests the model be plotted.
   XGAUS.........Fits 1-dimensional Gaussians to images: restartable.
                 DOMODEL true requests that the individual fit
                 components be plotted on each spectrum plot.
----------------------------------------------------------------