Nelder-Mead example not available in examples or in documentation

[m0m0khan]

Hello, I would like to use this library to optimize a non-linear function with the opt_data feature to be passed as arguments to the function using Nelder-Mead. I could not find any example for it here. Since I'm a newbie in c++, I wasn't able to replicate it by seeing other examples in the library. Can someone help me here?

[kthohr]

https://github.com/kthohr/optim/blob/master/tests/unconstrained/nm.cpp#L123