#includeIn this example, a histogram named "histogram" is created with 100 bins ranging from 0 to 1000. It is filled with 1000 random numbers generated using a Gaussian distribution. A function named "fit_function" is defined using the Gaussian function with parameters (0, 1, 1). The histogram is then fit to the "fit_function" using `histogram->Fit(fit_function)`. Finally, a canvas is created to display the histogram. The TH1F Fit function is part of the ROOT package, specifically the TH1F class and its associated functions. ROOT is a free and open-source software framework used for scientific data processing and analysis.#include #include void TH1F_Fit_example(){ // Create a histogram with 1000 random numbers TH1F *histogram = new TH1F("histogram", "Histogram Title", 100, 0, 1000); histogram->FillRandom("gaus", 1000); // Define function to fit to histogram TF1 *fit_function = new TF1("fit_function", "gaus(0)", 0, 1000); // Fit histogram to function histogram->Fit(fit_function); // Create a canvas to display the histogram TCanvas *canvas = new TCanvas("canvas", "Canvas Title", 800, 600); histogram->Draw(); }