Plot window doesn't appear

[msxshankar]

I am quite new to C++ and matplotplusplus.

I have embedded the library as a submodule using CMake.
However, when I plot a simple line graph (using the example in the documentation), a window flashes up and then immediately closes.

I am using Linux and have all dependencies installed and up to date (gnuplot, cmake and gcc)

This is the code I am using:

#include <matplot/matplot.h>
#include <vector>
#include <set>

int main () {
    using namespace matplot;

    std::set<std::vector<double>> Y = {{16, 5, 9, 4}, {2, 11, 7, 14}, {3, 10, 6, 15}, {13, 8, 12, 1}};
    
    plot(Y);
    show();

    return 0;
}

I'm not quite sure what the problem is so any help would be appreciated!