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rating-score

v1.0.1

Published

A better way to calculate ranking score to sort things on the web based on user upvotes or “stars”, using lower bound of Wilson score confidence interval for a Bernoulli parameter.

Downloads

5

Vulnerabilities

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  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

s21ns21n

Keywords

Readme

rating-score

You are a web programmer. You have users. Your users rate stuff on your site. You want to put the highest-rated stuff at the top and lowest-rated at the bottom. You need some sort of “score” to sort by.

– Evan Miller, “How Not To Sort By Average Rating”

A better way to calculate ranking score to sort things on the web based on user upvotes or “stars”, using lower bound of Wilson score confidence interval for a Bernoulli parameter.

API

Table of Contents

averageToScore

Calculates the score from the average of all reviews.

This function is curried.

Parameters

  • confidence Number
  • averageRating Number Average review score.
  • maxRating Number Maximum review score.
  • totalReviews Number Total number of reviews.

Returns Number Calculated score.

starsToScore

Calculates the score from a list of review counts.

This function is curried.

Parameters

Returns Number Calculated score.

upvotesToScore

Calculates the score from the number of upvotes and downvotes.

This function is curried.

Parameters

  • confidence Number
  • upvotes Number Number of positive reviews.
  • downvotes Number Number of negative reviews.

Returns Number Calculated score.