NAME
        MinMaxNaN

   DESCRIPTION
        This module determines the minimum and maximum data values of any
        lattice; the coordinate structure is totally ignored.  It is similar to the
        MinMax module, but also allows special values to be excluded from the
        minimum and maximum search and the search can be restricted to a
        single data variable.  If all the data values are special and the specials
        are to be ignored, then "All special values!" will be printed in the
        "Minimum" and "Maximum" widgets.  MinMaxNaN is useful in
        conjunction with modules such as Histogram so that the special values
        are not taken into account on its graph.

   INPUTS

      Input -- Lattice
         This is the lattice from which to determine the minimum and maximum.

   WIDGETS

      Ignore Special? -- Option Menu
         This determines whether the "Special Value" will be included in the
         minimum and maximum search.

      Special Value -- Text
         This is the special value which can be ignored.

      Formatted Special -- Text
         This is the special value reformatted using the "Float Format"
         specification.  Reformatting the value directly in the "Special Value"
         widget can lead to round-off problems so the formatted version is
         isolated from the original special value.  Modifying the value of this
         widget has no effect on the module operation; it is only used for
         informational purposes.

      Minimum -- Text
         This is the minimum data value found in the lattice.

      Maximum -- Text
         This is the maximum data value found in the lattice.

      Float Format -- Text
         This is the format specification for the special, minimum, and maximum
         values when they are floating point.  It is the same specification format
         used by the C language's "printf".  The minimum and maximum can be
         integers depending on the input lattice, but the special value is always
         converted internally to double-precision floating point.

      Which Data? -- Radio Box
         This allows determining the minimum and maximum from only one
         channel of a vector lattice rather than the default of scanning all the
         data values.

      Data Variable -- Slider
         This is the data variable to scan if only one should be scanned when
         determining the minimum and maximum

   KNOWN PROBLEMS
      There are no known bugs.

   SEE ALSO
      Graph, Histogram, MinMax
      
      -
      
      Hans Vahlenkamp (Hans.Vahlenkamp@noaa.gov)
      Geophysical Fluid Dynamics Laboratory / NOAA
      Princeton University Forrestal Campus
      http://www.gfdl.noaa.gov