; DOWEIGHT
;---------------------------------------------------------------
;! selects operations with data weights
;# ADVERB GENERAL
;-----------------------------------------------------------------------
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;-----------------------------------------------------------------------
DOWEIGHT    LLLLLLLLLLLLUUUUUUUUUUUU CCCCCCCCCCCCCCCCCCCCCCCCCCCCC
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DOWEIGHT
Type: Adverb (logical,  > 0  =>  true)
Use:  True means that some operation using data weights is selected.
Null value:   true (1)
Tasks:
  BPSMO.....Smooths or interpolates bandpass tables to regular times.
            DOWEIGHT controls whether weights are used in smothing.
  EDITR.....Interactive baseline-oriented visibility editor using the
            TV.  DOWEIGHT controls the scaling of error bars.
  FILLM.....Reads VLA on-line/archive format uv data tapes (post Jan
            88).   DOWEIGHT > 0 causes data weights to be scaled by the
            nominal sensitivity.
  FITLD.....Reads FITS files to load images or UV (IDI or UVFITS) data
            to disk.  DOWEIGHT > 0 causes data weights to be scaled by
            bandwdith times integration time.
  IMERG.....Merges images of different spatial resolutions.  DOWEIGHT
            > 0 allows correction of the low resolution image to account
            for the different beams.
  LAYER.....Task to create an RGB image from multiple images.  DOWEIGHT
            > 0 causes the intensity to be also absorbed.
  OTFUV.....Translate 12m on-the-fly line data into AIPS format.
            DOWEIGHT true means to interpolate the Off and Gain data in
            time before applying to the On-source data.
  RMFIT.....Fits 1-dimensional polarization spectrum to Q/U cube.
            DOWEIGHT > 0 causes the data to be weighted by the values in
            INFILE or by the rms of the spectral channel image.
  SCIMG.....Full-featured imaging plus self-calibration loop with
            editing.  DOWEIGHT scales the display of error bars in the
            editing phase.
  SCMAP.....Imaging plus self-calibration loop with editing.  DOWEIGHT
            scales the display of error bars in the editing phase.
  SERCH.....Finds line signals in transposed data cube.  DOWEIGHT > 0
            causes the filters to weight by spectral channel image rms.
  SPRMS.....Plots spectral statistics of a selected subset of a uv data
            set.  DOWEIGHT > 0 causes weights to be used when averaging
            over baselines.
  SYSOL.....Undoes and re-does nominal sensitivity application for Solar
            data.  DOWEIGHT >= 0 causes data weights to be computed from
            the values in the SY table.
  TYAPL.....Undoes and re-does nominal sensitivity application.
            DOWEIGHT >= 0 causes data weights to be computed from  the
            values in the SY table.
  UFLAG.....Plots and edits data using a uv-plane grid and the TV.
            DOWEIGHT > 0 causes each cell to contain the weighted
            average of the data falling in that cell.
  UJOIN.....Modifies UV data converting IFs to spectral channels.
            DOWEIGHT controls how overlapped channels are handled when
            there is flagging.
  UVPLT.....Plots data from a UV data base in multiple ways.  DOWEIGHT
            > 0 causes data weights to be used in binning data.
  UVRMS.....Computes statistics of a selected subset of a uv data set.
            DOWEIGHT > 0 causes weights to be used when averaging over
            baselines.
  VBCAL.....Scale visibility amplitudes by antenna based constants.
            DOWEIGHT > 0 causes weights also to be corrected.
  WETHR.....Plots selected contents of WX tables, flags data based on
            WX.  DOWEIGHT controls the weighting of weather in opacity
            computations.
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