% some random data for demonstration:
ff_r = 100*rand(50,1);
ff_g = 100*rand(50,1);
saved_data = rand(50,1);
plotted_data = log10(saved_data);
% mark each point where plotted_data is at its minimum value
% with a red cross:
idx = plotted_data == min(plotted_data);
plot(ff_r(idx),ff_g(idx),'r+','LineWidth',1.5,'MarkerSize',8)
hold on
scatter(ff_r,ff_g,10,plotted_data,'filled')
xlabel('Fill Factor RED [%]');
ylabel('Fill Factor Green [%]');
grid minor; xlim([0, 100]); ylim([0, 100]);
c = colorbar('eastoutside');
c.Label.String = 'Leistung: log_{10}(P) in [W/m^2]';
axis square;
colormap(cool(17))
