#include int main() { using namespace matplot; std::vector> data = { {38.46, 39}, {39.7, 36.2}, {38.13, 38.88}, {33.88, 43}}; heatmap(data); title("Mean of Age"); auto ax = gca(); ax->x_axis().ticklabels({"false", "true"}); ax->y_axis().ticklabels({"Excellent", "Fair", "Good", "Poor"}); xlabel(ax, "Smoker"); ylabel(ax, "SelfAssessedHealthStatus"); show(); return 0; }