There is already a good answer for how to use gnuplot-iostream.h in C++ to plot graphs. I am trying to find a solution using vcpkg where instead of saving the gnuplot-iostream.h file in my project folder I install it using vcpkg so it is available for a wide range of projects. It is not a package that is included with vcpkg so I guess there may be a different route for including it. I am a user who finds microsoft documentation like this one impossible to decipher.