param_mutation_example.cpp

Example usage of ParameterSetter and ParameterShifter.

Example usage of ParameterSetter and ParameterShifter.This example demonstrates how to modify parameter values either by setting them directly or by applying a shift.

#include "ParameterSetter.h"
#include "ParameterShifter.h"
#include "Parameters.h"
 
int main() {
    // Assume the Parameters system is already initialized elsewhere
    
    ParamId pid{ParameterType::SM, "MASS", 24}; // W boson mass
    
    ParameterSetter setter;
    setter.mutate(pid, 80.385); // Set the value directly
    setter.change_mode(pid, ParameterMode::SHIFTABLE); // Allow shifts
    
    ParameterShifter shifter;
    shifter.mutate(pid, 0.1); // Apply a +0.1 GeV shift to the W mass
    
    return 0;
}