Miriad uv datasets can contain both spectral and continuumn visibility
data simultaneously. When both are present, the user/programmer will
normally select which of these data to read, using the uvset routine
(see Section 2.5.11). However this allows only one ``linetype'' to be
read and written at a time. The uvwread and uvwwrite allow
the programmer to read and write the continuum data independently
of the ``linetype''. These routines completely bypass linetype processing.
They should be used only when both a particular linetype, and the continuum
data are required. Uvwread should be called after the call to
uvread, whereas uvwwrite should be called before the call to
The routine uvwflgwr is the ``wide'' equivalent of uvflgwr.
That is, by calling uvwflgwr, you can overwrite the flags associated
with the previous call to
uvwread and uvwwrite. Note that uvwflgwr aborts if no
flagging file exists.