SciML / SciML/ComponentArrays.jl

How to get index range of subarray?

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Dominant language
Julia
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Description

In the case below, how do I get the range of indices spanned by x.a?

x = (; a = ones(2), b = ones(2)) |> ComponentArray

idx_a = ?? # want 1:2

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by checking the ComponentArray indexing API for a way to retrieve the range associated with component x.a. Done means the provided example can obtain the range 1:2; if no such API exists, the issue needs a more specific implementation target.

Written by the indexing model from the issue text.

Assessment

Tech stack
julia
Domain
data
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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