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@pc-ca/ab-stats

v0.2.0

Published

Closed-form Bayesian and frequentist statistics for the Paper Crane A/B toolkit

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Links

Git

Maintainers

kito0kito0

Keywords

sanitynextjsab-testingexperimentationpaper-crane

Readme

@pc-ca/ab-stats

Closed-form statistics for the Paper Crane A/B toolkit. No dependencies, no matrix maths — everything is a closed form so it runs inside a Cloudflare Worker.

  • Beta-Binomial Bayesian posteriors: chance to win, expected loss, credible intervals
  • Two-proportion z test: z, p, relative lift with confidence interval
  • Chi-square sample-ratio-mismatch check
  • Thompson sampling weights for bandit allocation
import {
  posterior,
  chanceToWin,
  expectedLoss,
  credibleInterval,
  twoProportionTest,
  srmCheck,
  thompsonWeights,
} from "@pc-ca/ab-stats";

MIT