Correlation between Stellar assets is uncomputed

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@samkelly-dev 已经在做这个了。

开始于 2026年10月16日。

  • #327 来自 @samkelly-dev —— 未关闭
  • #477 来自 @sparkysolutions10-pixel —— 未关闭

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描述

area:pricing difficulty:intermediate epic:analytics help wanted points:150 Stellar Wave
Background

Anyone holding a basket — and /basket exists, so Lens already expects them — needs to know what moves together. The price history is there; nothing correlates it.

What to build
  • GET /correlation?assets=… returning a matrix over a window, with the sample count per pair.
  • A pair with too few overlapping samples is reported as insufficient rather than given a meaningless coefficient.
Acceptance criteria
  • A correlation matrix over a configurable window
  • Sample count per pair in the response
  • Insufficient overlap is reported, not computed
  • A test against a hand-computed example

Drips Wave · Complexity: Intermediate · 150 points

Repo: Divinity-Labs/Lens. Node + Fastify + Prisma + Postgres. Tests are vitest (npm test), not jest — jest against this repo fails every file and tells you nothing.

?network= is not optional on a new route. Every row carries a network and the indexes lead with it. Read req.network ?? activeNetwork, filter on it, echo it in the response, and declare the parameter in openapi.yaml. tests/openapi.test.ts boots the server and fails if a registered route is missing from the spec.

A number without provenance is not an answer. Every figure this batch adds must carry what it was computed from: which venues, how many samples, how fresh. The point of Lens is that its numbers can be checked.

Never elide a contract id or an issuer. Take addresses from the protocol's own documentation and write them whole. A sibling repo's issue wrote CD2W5LUR…XZ4L and five contributors invented plausible contract ids to fill the gap.

Say when you cannot answer. An asset with no liquidity, a pair with one venue, a window with a gap — each has an honest answer that is not zero and not a 500. Zero is a number people act on.

Required: Before submitting, join the contributor Telegram so your work can be tracked and counted toward the Stellar Wave: https://t.me/+fxHXq8f1SwlkZDBk

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