How to fit data to a model?

[SergeStinckwich]

We have done some work to use Matlab from Kendrick: https://github.com/UMMISCO/kendrick/wiki/Fit-a-Kendrick-model-to-data but we need something that is more integrated in Kendrick.

I R, they use optim() function: https://www.ibm.com/developerworks/library/ba-optimR-john-nash/index.html