Code and data for Dave Burton's letter to J. Natural Hazards.

Install Perl 5 and IrfanView under Windows, then run calc_for_JNatHaz.bat to
generate all graphs and perform all regression analyses and other calculations.

I use 64-bit Windows 7, but any 32-bit or 64-bit Windows will probably work.

I use Win32 Strawberry Perl 5.12.3.0, but most versions of Perl 5 should work.
No CPAN modules are needed, the code is all self-contained.

Irfan Skiljan's wonderful free IrfanView is used for converting and compressing
the .bmp files generated by the Perl code modules into .png files.  However,
IrfanView runs under Windows, only, so Linux and Mac users will have to make
minor modifications to the .bat files, to not use the -c (compress) option,
and to use only .bmp file names, rather than .png file names.  (Everything
should probably still work, though the .bmp files are enormous.)

In case of problems or questions, contact Dave:
http://www.burtonsys.com/email/

Dave Burton
Cary, NC
2012-02-05



----------------------------------------------------
Manifest:

   2915   2-05-12  5:02a  READ_ME.txt                  This file
   3564   5-01-10  4:47p  2006.lis                     Church & White 2006 data (yearly)
   3588   4-03-10  7:16a  2009.lis                     Church & White 2009 data (yearly)
   3120   2-02-11  7:54p  2011.lis                     Church & White 2011 data (yearly)
   1895   2-05-12  4:32a  calc_for_JNatHaz.bat         script to do all calculations and generate all graphs
  23651   2-05-12  4:41a  church_white_regressions.pl  main program (invoked by calc_for_JNatHaz.bat)
    943   2-04-12  5:16a  cwgraph.bat                  script to do custom regression analysis and generate a small graph
    967   2-04-12  5:32a  cwgraphbig.bat               script to do custom regression analysis and generate a big graph
  10679  10-21-11  2:32a  5x8_bitmap_charset.pl        module used by church_white_regressions.pl
   3127   3-09-11  1:25a  detect_do_or_require.pl        "     "   "              "
   5516   3-09-11  1:37a  linear_fit.pl                  "     "   "              "
  35973   3-14-11  1:11a  plot_to_bmp.pl                 "     "   "              "
   8587   5-27-10  1:44p  quadratic_fit.pl               "     "   "              "
   4783   5-25-10 10:04p  threeunknowns.pl               "     "   "              "
   2748   5-19-10  9:09a  traceback.pl                   "     "   "              "
   5727   5-26-10 10:19p  twounknowns.pl                 "     "   "              "
   6191   3-09-11  1:36a  weighted_linear_fit.pl         "     "   "              "
   8398   5-28-10 12:01p  weighted_quadratic_fit.pl      "     "   "              "

All program code is by David A. Burton, except as noted in the comments.
Some modules are copyrighted, some are uncopyrighted, as noted in the comments.

