JuliaDataCubes / JuliaDataCubes/EarthDataLab.jl
PCA
Nobody has claimed this yet.
- Dominant language
- Julia
- Stars
- 34
- Forks
- 14
- PR merge metrics
- No merged PRs in 30d
Description
StatsBase.jl just released a new version with the z-Transform and WeightedOnlineStats.jl tests pass now so I tagged v0.2.0 with a pca (https://github.com/gdkrmr/WeightedOnlineStats.jl/releases/tag/v0.2.0).
I am not yet super happy with pca(cov) returning a StatsBase.ZScoreTransform and a MultivariateStats.PCA object, in my opinion, there should be a MultivariateStats.AbstractPCA so I can return a single custom PCA object.
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reviewing the pca(cov) behavior described alongside StatsBase.jl, WeightedOnlineStats.jl v0.2.0, and the returned MultivariateStats.PCA object. Determine whether an AbstractPCA abstraction can represent the current StatsBase.ZScoreTransform and PCA results as one custom PCA object; done means the proposed API is defined and usable.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- julia
- Domain
- data, machine-learning
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100