Hi Eric, I hope you don't mind my little follow-up question 🙏
In the example that Melissa gave, having precipitation data with an elevation trend, please imagine that we have decided to use cokriging to interpolate precipitation -with elevation as auxiliary variable. Aren't we using that elevation component of the precipitation data as a guide for our predictions, therefore shouldn't we keep that elevation trend instead of removing it (because the cokriging model will make good use of it)?
Thank you very much for your time