Delila Program: diffintcut

diffintcut program

Documentation for the diffintcut program is below, with links to related programs in the "see also" section.

{   version = 1.10; (* of diffintcut.p 2007 Nov 29}

(* begin module describe.diffintcut *)
(*
name
   diffintcut: differences between integers with cutoff

synopsis
   diffintcut(input: in, diffintcutp: in, output: out);

files
   input: a set of integers, one per line.
       Lines that begin with "*" are ignored - a comment line.

   diffintcutp:  parameters to control the program.  The file must contain the
      following parameters, one per line:

      parameterversion: The version number of the program.  This allows the
         user to be warned if an old parameter file is used.

      colummn: an integer that defines which column (space delimiter)
         of the input file to use.

      lower upper: Two integers on one line
         These define the range of differences to report

      width: an integer that defines the width of output numbers

   output:

      first column: the difference between each integer and the
      previous one within (inclusive) the lower and upper.

      second column: previous integer in the file

      third column: current integer in the file


describe

   Lines that begin with an asterisk ('*') are first copied to the
   output.  then the difference between each integer in input and the
   previous one is given to the output.

   Data often comes separated into chunks and the user may want to
   control the chunks, so the program resets everytime there is a
   comment line in the input file.  That is, at the beginning of the
   data the program cannot give a difference because there is no
   previous value.  So the program only starts reporting differences
   for the second and later data items.  If there is a comment, the
   program starts over and does not report the difference with the
   value before the comment line.  If you do not want this behavior,
   then use the Unix command:

      `grep -v '*' file|diffintcut`.

   The grep -v will remove all lines that have '* in them in the file.

documentation

see also

   example parameter file: diffintcutp

   Simpler (and probably faster) differences of integer program: diffint.p

author

   Thomas Dana Schneider

bugs

technical notes

bugs

   none known

*)
(* end module describe.diffintcut *)
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