Download data with Quandl and convert to returns
Regenerate data function
Stock selection. Iterative optimization until success
Loop over methods
Parallel over optimization methods
Best point of SLSQP is the new start for optimization
Docstrings
Full, diagonal, and sclar type of models
Modified contribution function for speedup
Introduce restriction on maximum eigenvalue.
Improve docstrings.
Write a separate function for one step estimation.
Docstrings again
Docstrings again 2
Maximum number of function evaluations
Three step estimation with Nelder-Mead
Read Quandl token externally
Added readme file
Reorganize the folder
Make a module
Separate examples from module