http://www.perlmonks.org?node_id=1052129


in reply to How to create heat map in perl

Works for me too on Windows 7 x64 with Strawberry Perl 5.16.1 and GnuPlot 4.4 patchlevel 3. I did need to add two options to get the Windows version to work:

[...] my $chart = Chart::Gnuplot->new( gnuplot => 'c:/usr/bin/gnuplot.bat', # req'd for Win32 terminal => 'png', # req'd for Win32 [...]