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Distributions.jl and RecursiveArrayTools.jl do not work together. #1878

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@Nimrais

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@Nimrais

Hi! Thanks for this great package.

When I am training to construct a Categorical Distribution with an ArrayPartition vector it fails with a conversion error.

using RecursiveArrayTools
using Distributions

Categorical(ArrayPartition([1/3, 1/3], [1/3]))

Error

ERROR: MethodError: Cannot `convert` an object of type Vector{Float64} to an object of type ArrayPartition{Float64, Tuple{Vector{Float64}, Vector{Float64}}}

Closest candidates are:
  convert(::Type{ArrayPartition{T, S}}, ::ArrayPartition{<:Any, <:Tuple{Vararg{Any, N}}}) where {N, T, S<:Tuple{Vararg{Any, N}}}
   @ RecursiveArrayTools ~/.julia/packages/RecursiveArrayTools/K1bCr/src/array_partition.jl:543
  convert(::Type{T}, ::T) where T
   @ Base Base.jl:84
  convert(::Type{T}, ::T) where T<:AbstractArray
   @ Base abstractarray.jl:16
  ...

Stacktrace:
 [1] Categorical{Float64, ArrayPartition{…}}(xs::Base.OneTo{Int64}, ps::ArrayPartition{Float64, Tuple{…}}; check_args::Bool)
   @ Distributions ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/discretenonparametric.jl:34
 [2] DiscreteNonParametric
   @ ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/discretenonparametric.jl:24 [inlined]
 [3] #_#115
   @ ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/categorical.jl:31 [inlined]
 [4] DiscreteNonParametric
   @ ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/categorical.jl:29 [inlined]
 [5] (Categorical{P} where P<:Real)(p::ArrayPartition{Float64, Tuple{Vector{Float64}, Vector{Float64}}})
   @ Distributions ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/categorical.jl:34
 [6] top-level scope
   @ ~/repos/ReactiveBayes/ExponentialFamily.jl/categorical_bug.jl:4
Some type information was truncated. Use `show(err)` to see complete types.

ERROR: MethodError: Cannot `convert` an object of type Vector{Float64} to an object of type ArrayPartition{Float64, Tuple{Vector{Float64}, Vector{Float64}}}

Closest candidates are:
  convert(::Type{ArrayPartition{T, S}}, ::ArrayPartition{<:Any, <:Tuple{Vararg{Any, N}}}) where {N, T, S<:Tuple{Vararg{Any, N}}}
   @ RecursiveArrayTools ~/.julia/packages/RecursiveArrayTools/K1bCr/src/array_partition.jl:543
  convert(::Type{T}, ::T) where T
   @ Base Base.jl:84
  convert(::Type{T}, ::T) where T<:AbstractArray
   @ Base abstractarray.jl:16
  ...

Stacktrace:
 [1] Categorical{Float64, ArrayPartition{…}}(xs::Base.OneTo{Int64}, ps::ArrayPartition{Float64, Tuple{…}}; check_args::Bool)
   @ Distributions ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/discretenonparametric.jl:34
 [2] DiscreteNonParametric
   @ ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/discretenonparametric.jl:24 [inlined]
 [3] #_#115
   @ ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/categorical.jl:31 [inlined]
 [4] DiscreteNonParametric
   @ ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/categorical.jl:29 [inlined]
 [5] (Categorical{P} where P<:Real)(p::ArrayPartition{Float64, Tuple{Vector{Float64}, Vector{Float64}}})
   @ Distributions ~/.julia/packages/Distributions/ji8PW/src/univariate/discrete/categorical.jl:34
 [6] top-level scope
   @ ~/repos/ReactiveBayes/ExponentialFamily.jl/categorical_bug.jl:4
Some type information was truncated. Use `show(err)` to see complete types.

Distributions v0.25.109
RecursiveArrayTools v3.26.0

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