Test termination criteria and update dictionary.

Create a directory if it doesn't exist.

Write data to a temporary file, then move to the destination path.

alias ``reset``, set all state variables to initial values

nicely formated print

``prctile(data, 50)`` returns the median, but p_vals can also be a sequence. Provides for small samples better values than

pass objective function values to prepare for next iteration. This core procedure of the CMA-ES algorithm updates all state variable

return list of options that can be changed at any time (not only be initialized), however the list might not be entirely up to date. The