Vikram

@archermarx - One of the tasks you've listed is: Many doc examples are broken, would be good to fix those. Is this related to #363? If yes, are you working...

> I'm not sure yet, I haven't dug too deeply down into the issue, but most of the examples in the documentation display no results. Okay thanks. I'll work on...

As per [this](https://arxiv.org/pdf/1708.02663.pdf) paper: _"Since there is no analytical solution for estimating the hyperparameters θ, it is necessary to use numerical optimization to find the hyperparameters θ that maximize the...

I would like to work on Gradient Enhanced Kriging.

@ChrisRackauckas and @ranjanan - I've coded up a _very_ rough version of GEKPLS as a bunch of functions [here](https://gist.github.com/vikram-s-narayan/cbe2e65dfe3c42b062b2175c70d5e22f). All of my code is a translation of the SMT python...

OK. I'll start cleaning this up and search for an alternative for ScikitLearn PLS. Thanks!

@ChrisRackauckas - I've created a [draft pull request for GEKPLS ](https://github.com/SciML/Surrogates.jl/pull/357) with some basic tests added in. This still uses the SK Learn PLS Regressor which I plan to replace....

Could you please share which commit messages and docs you are referring to? Thanks!

Yes. I will add this info to the documentation. Thank you!

@st-- I'm planning on adding the following example to the [documentation](https://github.com/SciML/Surrogates.jl/blob/master/docs/src/abstractgps.md). ``` #this is a starter example for how to #find optimal initial hyperparameters using Surrogates using AbstractGPs using Hyperopt...