KernelSum and KernelProduct with Vector of Kernel fails

[theogf]

Right now these composites will not work if the container is not a Tuple.
See

k = SqExponentialKernel()
kk = KernelSum([k, k])
kk(2, 3) # Errors

[devmotion]

From looking at the code, it seems we just forgot to add a fallback for _sum?

KernelFunctions.jl/src/kernels/kernelsum.jl

Line 46 in 401d556

_sum(f, ks::Tuple, args...) = f(first(ks), args...) + _sum(f, Base.tail(ks), args...)

We explicitly supports constructors and summation for KernelSum with AbstractVector, so it should work. I'm surprised there's no test for it.

[theogf]

Yes sorry I started with the title, found that the code was almost right and forgot to update.

I will edit the issue name now

[theo-brown]

Has this been fixed?

[theogf]

No the issue still seems to be there. The MWE is wrong, I will adjust it.

[theogf]

Reopening as the KernelProduct still has the issue