// Set the maximum value for the y-axis to 10 myHistogram->SetMaximum(10); // Set the maximum value based on the maximum bin content in the histogram myHistogram->SetMaximum(myHistogram->GetMaximum() * 1.2);In the first example, we set the maximum value for the y-axis to 10. In the second example, we set the maximum value based on the maximum bin content multiplied by 1.2, which increases the range slightly to account for any outliers. The package library is ROOT, which is a data analysis framework used in high energy physics. It provides a set of C++ libraries and tools for analyzing, visualizing, and storing data.