Merge pull request #49 from anuraghazra/ranking-algo (987fb0c3) · Commits · 郑智淋 / github-readme-stats

src/calculateRank.js

+60 −19

Original line number	Diff line number	Diff line
		// https://stackoverflow.com/a/5263759/10629172
		function normalcdf(mean, sigma, to) {
		var z = (to - mean) / Math.sqrt(2 * sigma * sigma);
		var t = 1 / (1 + 0.3275911 * Math.abs(z));
		var a1 = 0.254829592;
		var a2 = -0.284496736;
		var a3 = 1.421413741;
		var a4 = -1.453152027;
		var a5 = 1.061405429;
		var erf =
		1 - ((((a5 * t + a4) * t + a3) * t + a2) * t + a1) * t * Math.exp(-z * z);
		var sign = 1;
		if (z < 0) {
		sign = -1;
		}
		return (1 / 2) * (1 + sign * erf);
		}

		function calculateRank({
		totalRepos,
		totalCommits,
		@@ -13,12 +31,24 @@ function calculateRank({
		const STARS_OFFSET = 0.75;
		const PRS_OFFSET = 0.5;
		const FOLLOWERS_OFFSET = 0.45;
		const REPO_OFFSET = 1;

		const ALL_OFFSETS =
		CONTRIBS_OFFSET +
		ISSUES_OFFSET +
		STARS_OFFSET +
		PRS_OFFSET +
		FOLLOWERS_OFFSET +
		REPO_OFFSET;

		const FIRST_STEP = 0;
		const SECOND_STEP = 5;
		const THIRD_STEP = 20;
		const FOURTH_STEP = 50;
		const FIFTH_STEP = 130;
		const RANK_S_VALUE = 1;
		const RANK_DOUBLE_A_VALUE = 25;
		const RANK_A2_VALUE = 45;
		const RANK_A3_VALUE = 60;
		const RANK_B_VALUE = 100;

		const TOTAL_VALUES =
		RANK_S_VALUE + RANK_A2_VALUE + RANK_A3_VALUE + RANK_B_VALUE;

		// prettier-ignore
		const score = (
		@@ -27,26 +57,37 @@ function calculateRank({
		issues * ISSUES_OFFSET +
		stargazers * STARS_OFFSET +
		prs * PRS_OFFSET +
		followers * FOLLOWERS_OFFSET
		) / totalRepos;
		followers * FOLLOWERS_OFFSET +
		totalRepos * REPO_OFFSET
		) / 100;

		const normalizedScore = normalcdf(score, TOTAL_VALUES, ALL_OFFSETS) * 100;

		let level = "";

		if (score == FIRST_STEP) {
		level = "B";
		} else if (score > FIRST_STEP && score <= SECOND_STEP) {
		level = "B+";
		} else if (score > SECOND_STEP && score <= THIRD_STEP) {
		level = "A";
		} else if (score > THIRD_STEP && score <= FOURTH_STEP) {
		level = "A+";
		} else if (score > FOURTH_STEP && score <= FIFTH_STEP) {
		level = "A++";
		} else if (score > FIFTH_STEP) {
		if (normalizedScore < RANK_S_VALUE) {
		level = "S+";
		}
		if (
		normalizedScore >= RANK_S_VALUE &&
		normalizedScore < RANK_DOUBLE_A_VALUE
		) {
		level = "S";
		}
		if (
		normalizedScore >= RANK_DOUBLE_A_VALUE &&
		normalizedScore < RANK_A2_VALUE
		) {
		level = "A++";
		}
		if (normalizedScore >= RANK_A2_VALUE && normalizedScore < RANK_A3_VALUE) {
		level = "A+";
		}
		if (normalizedScore >= RANK_A3_VALUE && normalizedScore < RANK_B_VALUE) {
		level = "B+";
		}

		return { level, score };
		return { level, score: normalizedScore };
		}

		module.exports = calculateRank;

src/fetchStats.js

+1 −1

Original line number	Diff line number	Diff line
		@@ -26,7 +26,7 @@ const fetcher = (variables, token) => {
		followers {
		totalCount
		}
		repositories(first: 100, orderBy: { direction: DESC, field: STARGAZERS }) {
		repositories(first: 100, ownerAffiliations: OWNER, isFork: false, orderBy: {direction: DESC, field: STARGAZERS}) {
		totalCount
		nodes {
		stargazers {

src/renderStatsCard.js

+3 −8

Original line number	Diff line number	Diff line
		@@ -127,14 +127,9 @@ const renderStatsCard = (stats = {}, options = { hide: [] }) => {
		</text>
		</g>`;

		// re-adjust circle progressbar's value until the ranking algo is improved
		let progress = rank.score;
		if (rank.score > 86) {
		progress = (40 + rank.score) * 0.6;
		}
		if (rank.score < 40) {
		progress = 40 + rank.score;
		}
		// the better user's score the the rank will be closer to zero so
		// subtracting 100 to get the progress in 100%
		let progress = 100 - rank.score;

		const styles = getStyles({
		titleColor,

tests/calculateRank.test.js

+1 −1

Original line number	Diff line number	Diff line
		@@ -13,6 +13,6 @@ describe("Test calculateRank", () => {
		prs: 300,
		issues: 200,
		})
		).toStrictEqual({ level: "S+", score: 192.13 });
		).toStrictEqual({ level: "A+", score: 49.16605417270399 });
		});
		});

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