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COMPUTE RANKORDER

        [SIC\]COMPUTE OutVar RANKORDER InVar

    Compute the order (sorting array) corresponding to the values in  InVar,
    e.g.
      SIC> define real a[4] b[4]
      SIC> let a 10 15 12 9
      SIC> compute b rankorder a
      SIC> exa b
      B               is a real Array     of dimensions  4
         4.000000       1.000000       3.000000       2.000000

    InVar  and OutVar are R*4 or R*8 variables, assumed to be 1-D variables.
    This can be used e.g. for  statistical  non-parametric  tests  like  the
    Spearman test.


Gildas manager 2023-06-01