Comments (6)
If I overload map
and I can get around it
julia> Base.map(f, x::ComponentArray, args...) = ComponentArray(map(f, getdata(x), args...), getaxes(x))
julia> map((x,y)->x+y, ca,[3,4])
ComponentVector{Int64}(a = 4, b = 6)
from componentarrays.jl.
This could be dangerous tho...
from componentarrays.jl.
Ok this is a bad idea. But the following idea is a good one
import Zygote: seed
using ForwardDiff: Dual
function Zygote.seed(x::ComponentArray, ::Val{N}, offset = 0) where N
dual = map(x, reshape(1:length(x), size(x))) do x, i
Dual(x, ntuple(j -> j+offset == i, Val(N)))
end
return ComponentArray(dual, getaxes(x))
end
This is closely related to #148
from componentarrays.jl.
The behavior of map
should fall out of broadcast rules, rather than be overloaded explicitly (because this wouldn’t cover the case where the 2nd, 3rd, etc. argument is a ComponentArray
and the first isn’t. I could probably change this so the ComponentArray
“wins” here.
from componentarrays.jl.
The current behaviour of map
is fine as it is the same with named tuples.
julia> ca = (a=1,b=2)
(a = 1, b = 2)
julia> map((x,y)->x+y, ca,1:2)
2-element Vector{Int64}:
2
4
from componentarrays.jl.
I'm closing this since its more of Zygote issue
from componentarrays.jl.
Related Issues (20)
- vcat ambiguity with SparseArrays method HOT 2
- add missing LinearAlgebra methods on GPU
- Problem with `Zygote.hessian` HOT 1
- `lmul!` fails with Component Array on GPU
- Incorrect gradient type. HOT 2
- Scalar indexing on GPU when computing `Zygote.gradient` of `dot(x::CA, x::CA)`
- Method ambiguities reported by Aqua
- getting "Only homogeneous arrays are allowed" error for Vector{SVector} HOT 4
- How to get index range of subarray? HOT 3
- Extend KeepIndex to Vector indices HOT 1
- Nine broken tests for Test Summary: | Pass Broken Total Time Broadcasting | 30 9 39 7.2s HOT 1
- The ComponentArray type that can specify the properties of the ComponentArray object
- Indexing `ComponentMatrix` with `FlatAxis` components HOT 4
- `Diagonal(ComponentArray)` scalar indexing error HOT 1
- ComponentVectors are not stack-able HOT 10
- ComponentArray errors with `findall`
- Can't index component array with shaped components with subset of keys HOT 2
- FR: Preserve CA-ness when indexing component matrix with shaped components HOT 1
- Get rid of `ComponentMatrix` and higher-order `ComponentArray`s? HOT 12
- Missing reduced_index
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from componentarrays.jl.