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UV_CONTINUUM

        [CLEAN\]UV_CONTINUUM [Naver] [/INDEX Value [Frequency]]
      [/RANGE Min Max TYPE]

    Transform  the  (presumably spectral line) UV data set loaded by READ UV
    into a "continuum" data set.

    The transformation selects line channels defined by the  /RANGE  option,
    average them by groups of Naver contiguous channels, and concatenate the
    resulting visibilities into a "continuum" UV  table.   If  not  present,
    Naver  is  derived from the current field of view MAP_FIELD and required
    precision, MAP_PRECIS to avoid bandwidth smearing at field egdes.

    For each output channel, and for all visibilities, the U and  V  coordi-
    nates  are  rescaled  to the mean observing frequency, and the resulting
    (single-channel) visibilities are concatenated into the  "continuum"  UV
    data  set.  The  continuum  dataset becomes the current UV data. Flagged
    channels are ignored: this allows to mask channels  containing  spectral
    lines (see UV_FILTER).

    If no /RANGE option is defined, all channels are selected.


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Gildas manager 2023-06-01