"AttributeError: 'SumKernel' object has no attribute 'linop'" when using sum of kernels #5
Description
Hi! in _gaussian_process.py, function _evaluate from the class Mean throws an error "AttributeError: 'SumKernel' object has no attribute 'linop'", when I am trying to calculate posterior mean from GaussianProcess with combined kernel (sum and/or product). Is there a reason, why sum of kernels (and multiplication) is not supported? Is there any workaround, if I want to work with a combined kernels? Thanks in advance!