  1.  NAME

  preflyr2 - Compare relative velocities from reference layer

  2.  SYNOPSIS

  preflyr2(file1, fstr1,file2, fstr2, psf, unit, year, cruise, note )

  3.  DESCRIPTION

  This function reads two files, both generated by product navigation of
  adcpsect (assuming they arise from different datasets), and generates
  several plots for comparison of the relative reference layer
  velocities. This can be usefull when looking for the best of different
  available navigation sources.

  4.  PARAMETERS

     file1
        Name of first input file (output of adcpsect).

     fstr1
        Short string that refers to dataset in file1.

     file2
        Name of second input file (output of adcpsect).

     fstr2
        Short string that refers to dataset in file2.

     psf
        Name of output postscript file.

     unit
        String specifying the unit used for velocities.

     year
        Year base used for decimal days in input file.

     cruise
        Name of cruise.

     note
        Additionnal note to print on plot.

  5.  SEE ALSO

  prefabs(1m) prefabs1(3m) prefabs2(3m) preflyr(1m) preflyr1(3m)
  preflyr2(3m) psmooth1(3m) psmooth2(3m) psmoothr(1m)

  6.  AUTHORS

  Pierre Jaccard, Geophysical Institute, University of Bergen, 1999

