#include int main() { using namespace matplot; std::vector> Y = { {1, 3, 1, 2}, {5, 2, 5, 6}, {3, 7, 3, 1}}; auto f = gcf(); f->width(f->width() * 2); subplot(1, 2, 0); auto h1 = area(Y, -4.); h1[0]->line_style(":"); h1[1]->line_style(":"); h1[2]->line_style(":"); h1[0]->face_color({0, 0, 0.25, 0.25}); h1[1]->face_color({0, 0, 0.5, 0.5}); h1[2]->face_color({0, 0, 0.75, 0.75}); title("Stacked"); subplot(1, 2, 1); auto h2 = area(Y, -4, false); h2[0]->line_style(":"); h2[1]->line_style(":"); h2[2]->line_style(":"); h2[0]->face_color({0.2f, 0.f, 0.25f, 0.25f}); h2[1]->face_color({0.2f, 0.f, 0.5f, 0.5f}); h2[2]->face_color({0.2f, 0.f, 0.75f, 0.75f}); title("Not stacked"); show(); return 0; }