The idea seems to be that the check.something methods are just wrappers for more specific plots. See also this issue. Hence here it would make sense to extract a gridCheck2D function from check.mgcv.smooth.2D.
Currently the problem with check.mgcv.smooth.1D and 2D is that they really check what's happening along a 1 or 2 covariates, the do not really care about the specific smooth considered.
mfasiolo
commented
7 years ago
The idea seems to be that the check.something methods are just wrappers for more specific plots. See also this issue. Hence here it would make sense to extract a gridCheck2D function from check.mgcv.smooth.2D.
Currently the problem with check.mgcv.smooth.1D and 2D is that they really check what's happening along a 1 or 2 covariates, the do not really care about the specific smooth considered.