Re: Galaxy ship design aid

From: markhof@ls12r.informatik.uni-dortmund.de (Ingolf Markhof)

Date: Tue, 29 Jun 1993 09:42:49 +0000

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In article <C9Cp04.297@news.cso.uiuc.edu>, amead@s.psych.uiuc.edu (Alan D Mead) writes:
|> I believe the below chart is correct, but my purpose for posting it
|> here is to verify that.

I checked some values from your table and found no errors. Here is the
graph of p(kill) depending on the (effective weapon strength) / (effective
shield strength) ratio:

p(kill)
        1.0 ++--+--------+--------+-------+--------+--------+-------+---******
            |   +        +        +       +        +        +  *********     +
            |                                         *********              |
        0.8 ++                                 *******                      ++
            |                             ******                             |
            |                       ******                                   |
            |                   *****                                        |
        0.6 ++              ****                                            ++
            |            ****                                                |
            |          **                                                    |
        0.4 ++       **                                                     ++
            |      **                                                        |
            |    **                                                          |
            |   **                                                           |
        0.2 ++ *                                                            ++
            |**                                                              |
            |*  +        +        +       +        +        +       +        +
        0.0 *+--+--------+--------+-------+--------+--------+-------+-------++
               0.5      1.0      1.5     2.0      2.5      3.0     3.5      4.0
                  Effective Weapon Strength / Effective Shield Strenth

This graph was produced by using gnuplot with terminal set to dump. If
you have gnuplot, you may get a more precise plot on your X11 Display.
Just save the following lines in a file, start gnuplot an enter 'load
filename' (filename must be enclosed in double quotes!).

--- CUT HERE -----------------------------------------------------------------
# This is a gnuplot batch file. It plots the graph of GALAXY's pkill funktion
# depending on the ratio of (effective weapon strength) / (effective shield
# strength) of the two fighting ships.

pkill(q)=(log(q)/log(4)+1)/2
set xlabel "Effective Weapon Strength / Effective Shield Strenth"
set ylabel " p(kill)"
set format "%2.1f"
set ytics 0,0.2,1
set nokey
plot [q=0.25:4] pkill(q)
--- CUT HERE -----------------------------------------------------------------

And here is a PostScript file of the plot:

--- CUT HERE -----------------------------------------------------------------
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--- CUT HERE -----------------------------------------------------------------

Enjoy it.

Ingolf Markhof!

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      ____
  UniDo  /  Ingolf Markhof  University of Dortmund, LS Informatik XII
 ___/   /                   P.O. Box 500 500, D-44221 Dortmund, F.R. Germany
 \  \  /                    Phone: +49 (231) 755 6142, Fax: +49 (231) 755 6116
  \__\/                     Email: markhof@ls12.informatik.uni-dortmund.de

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References

Galaxy ship design aid
amead@s.psych.uiuc.edu (Alan D Mead)
Mon, 28 Jun 1993 21:28:52 +0000