Adanet_wrap: make x_validation optional
Hi @mbertoni! Could be possible to make the "x_validation" (required in /package/chemicalchecker/tool/adanet/adanet_wrap.py, line 272-273) optional? Arnau and I are only using test/train splits and this line raises an error since we do not specify any validation set. I think this validation set is only required here so it should be easy to make it optional.
Thanks!