%N uvsela %F $MIR/src/subs/uvio.c
%D Select or reject uv data, based on a character string
%P rjs
%: uv-i/o
%B
FORTRAN call sequence:
        subroutine uvsela(tno,object,string,flag)
        integer tno
        character object*(*),string*(*)
        logical flag

  This specifies the portion of the data to be selected by calls to
  uvread. This sets the value of a character string to compare against.

  Input:
    tno         Handle of the uv data file.
    object      This can be one of "source".
    string      String value, used in the selection process.
    flag        If true, the data is selected. If false, the data is
                discarded.                                              
