forum.alglib.net

Hello,

i am using the Levenberg-Marquardt algorithm for parallel optimization with different startvalues.
To determine the best solution i have to acces the data stored in state.fi
I don't know how to access it.

printf("%s @ %d\n", state.fi.tostring(2).c_str(),ID);

it gives me the data as string. e.g [x1,x2,x3, ..., xn].

But i want to store the data as double.

double result = state.fi[i] is not working.

please help me