maize dataset - doi:10.25502/g8y5-2377/d

[rhijmans]

Thanks, a complex one!

• This is not a DOI: "https://acsess.onlinelibrary.wiley.com/doi/full/10.1002/csc2.20071". It should be "doi:10.1002/csc2.20071"
• there are important differences between the "optimal", "striga" and "drought" trials. You captured some (fertilizer, but perhaps not correct, I think), but missed the differences in planting date and irrigation,
• for readability, please use consistent objects names like r1, r2, r3, not r, r0, r1.
• the "_in" variables still exist in the terminology, but we should not use them (and they will be removed). Striga trials/treatments should be indicated with the striga_infected and striga_trial variables.