strelzoff-erdc

We made you an example of Multiple Regression - both a simple linear example and a much harder non-linear example. [Toy Multiple Regression Notebook](https://github.com/strelzoff-erdc/HPH-experiments/blob/master/Toy_Multiple_Regression_for_HPH.ipynb)

No Problem - it's actually useful for us to set up some toy problems to test ideas > 1. The prediction files for multiple regression problems should contain the predictions...

Hi, I tried `RegressorChain` on the toy problem and it doesn't seem particularly useful. SKlearn doesn't have support for sequences (more or less deliberately). The `chain` estimators seem like a...