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An important point of any program dealing with data reduction is
the ability to visualize or print data in a fast and reliable way. For
this purpose a short introduction to the plotting capabilities of Frida-1
is given below.

  • We gratefully acknowledge the work of H. P. Schildberg providing
    together with Joachim Wuttke a PostScript header file with intriguing
    user commands.
  • The latest modification of the header file '' and a
    previous version '' are attached to this release.
    The first file now allows also for correct printing of error bars in
    logarithmic y-axis environments.
  • '' contains basic definitions of the linestyle and general
    layout of a file printed from the Frida-1 program to the
  • '' has been issued to the program package from frida-1-2
    onwards. This file is a merger of the '' file containing the
    header definitions and the formerly described file ''.
  • A figure shown in the Textronix window can be printed by typing
    'gp <>' at the command line. If <> is
    omitted a file '' with '#' being the smallest not yet existing
    number is created. The ps-file contains the file, axis
    definitions and the data provided by Frida-1. The created figure can
    be readily opened with a PostScript viewer.
  • For creating a file containing multiple figures at once, the new
    command gs has been implemented. Using this command instead
    of gp creates the postscript file without the '' header
    defining the different non-Standard PostScript commands used
    in the file. This makes it easier to concatenate a number of PostScript
    files created in this way to a single file. To print or visualize files
    created with gs the header '' has to be attached by
    e. g. 'cat > ~/'. The latter may be defined
    as alias 'gn' in your '.bashrc'.
  • In the file '' as well as at the bottom of '' there are a
    number of switches that allow to modify the ps-file. A figure containing
    a number of different possibilities like Greek letters, annotations,
    lists for curve descriptions can be obtained upon request from Florian