How to fill the area between lines in gray shade

How can I fill the area between the lines on the figure attached by gray background

Answer 1

[Star Strider]

This becomes a bit more complicated with multiple lines.

This assumes you want the gray region between the maximum and minimum line values —

x = linspace(0, 5, 10).';;                                                                  % Assume Column Vectors
y = ([0.5 0.75 0.9 0.95 1.1] + x*(1:5))*1E+6;

figure
plot(x, y)                                                                                  % Plot Lines
hold on
patch([x; flip(x)], [min(y,[],2); flip(max(y,[],2))], [1 1 1]*0.5, 'FaceAlpha', 0.25)       % Plot Gray 'patch'. Set 'FaceAlpha' (Transparency) To Show Lines
hold off
xlabel('Jahr')
ylabel('BoddenVolume in m^3')
lgdstr = compose('Limit 0.01 Cutoff %3d',[95 98 99 100]);
legend('PIZ', lgdstr{:}, 'Location','best')

.

[janas]

I appreciate your help, it worked.

[Star Strider]

As always, my pleasure!