Corrected bug in symmetric K

Author: theogf

src/kernelmatrix.jl

@@ -47,7 +47,7 @@ function kernelmatrix!(
         symmetrize::Bool = true
         ) where {T,T₁<:Real,T₂<:Real}
         #TODO Check dimension consistency
-        _symmetric_kappamatrix!(κ,pairwise!(metric(κ),X,dims=obsdim),symmetrize)
+        _symmetric_kappamatrix!(κ,pairwise!(K,metric(κ),X,dims=obsdim),symmetrize)
 end
 
 # Convenience Methods ======================================================================

src/kernels/squaredexponential.jl

@@ -12,12 +12,15 @@ related form of the kernel or [`GammaExponentialKernel`](@ref) for a generalizat
 
 # Examples
 
-```jldoctest; setup = :(using MLKernels)
+```jldoctest; setup = :(using KernelFunctions)
 julia> SquaredExponentialKernel()
-SquaredExponentialKernel{Float64}(1.0)
+SquaredExponentialKernel{Float64,Float64}(1.0)
 
 julia> SquaredExponentialKernel(2.0f0)
-SquaredExponentialKernel{Float32}(2.0)
+SquaredExponentialKernel{Float32,Float32}(2.0)
+
+julia> SquaredExponentialKernel([2.0,3.0])
+SquaredExponentialKernel{Float64,Array{Float64}}(1.0)
 ```
 """
 struct SquaredExponentialKernel{T<:Real,A} <: Kernel{T}