Genetic algorithm for fitting and solving equations (C++17)

This library is distributed under LGPL v.3 license. Don't be afraid, you can use headers with template classes/functions in your proprietary software if you don't modify them.

What features does this library provide

• Solving system of equations (containing any functions)

• Systems of equations containing magnitudes with uncertainties as well

• Fitting points with parametric functions

• You can code you own application of genetic algorithm

Compiling

If you have your git repository with cmake project you can add needed repositories as submodules:

git submodule add https://github.com/alexkernphysiker/math_h.git
git submodule add https://github.com/alexkernphysiker/FitGen.git
git submodule update --init --recursive

Then add to CMakeLists.txt

add_compile_options(--std=c++17)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -pthread") #option needed for multithreading
add_definitions(-Dusing_multithread) #option needed for multithreading
add_subdirectory(math_h)
add_subdirectory(FitGen)
include_directories(${MATH_H_INC})
include_directories(${FITGEN_INC})

Then commit your changes

Examples

Solving systems of equations First example

Example/system_of_equations.cpp

is the example of solving system of equations

F1(x,y)=G1(x,y)
F2(x,y)=G2(x,y)

Second example

Example/system_of_equations2.cpp

is the example of solving system of equations containing uncertainties

F1(x,y)=G1+/-dG1
F2(x,y)=G2+/-dG2

Fitting points with functions First example

Example/fit_one_func.cpp

is the example of fitting histogram with Gaussian.

Second example

Example/fit_foreground_background.cpp

is the example of fitting points with sum of foreground and background.