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string_xaxis_named_plot.cpp

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#include "../matplotlibcpp.h"

#include <string>

#include <vector>

namespace plt = matplotlibcpp;

int main()

{

const std::vector<std::string> months = {

"Jan 2021", "Feb 2021", "Mar 2021", "Apr 2021", "May 2021"

};

const std::vector<double> speed_kmh = {58.4, 61.2, 63.9, 62.1, 65.0};

plt::figure_size(900, 500);

plt::named_plot("Vehicle speed (max)", months, speed_kmh, "o-");

plt::title("Monthly peak speed");

plt::xlabel("Month");

plt::ylabel("Speed (km/h)");

plt::legend();

plt::tight_layout();

// Use save() for CI/headless usage; replace with show() for interactive runs.

plt::save("./string_xaxis_named_plot.png");

return 0;

}