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richweber/duval-calculator
==========================

Duval calculator

1.0.3(9y ago)060BSD-3-ClausePHPPHP ~7.1.0

Since Feb 1Pushed 9y ago1 watchersCompare

[ Source](https://github.com/RichWeber/duval-formula)[ Packagist](https://packagist.org/packages/richweber/duval-calculator)[ RSS](/packages/richweber-duval-calculator/feed)WikiDiscussions master Synced 1mo ago

READMEChangelog (4)Dependencies (1)Versions (5)Used By (0)

duval-formula
=============

[](#duval-formula)

Implementation of Duval formula

###  Health Score

27

—

LowBetter than 49% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity8

Limited adoption so far

Community7

Small or concentrated contributor base

Maturity61

Established project with proven stability

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~12 days

Total

4

Last Release

3348d ago

### Community

Maintainers

![](https://www.gravatar.com/avatar/28e7d97fcd6f7d28f2437d12098e9690d05dc2ba7dddf5e329e77cfb0a632b3d?d=identicon)[RichWeber](/maintainers/RichWeber)

---

Top Contributors

[![RichWeber](https://avatars.githubusercontent.com/u/1702252?v=4)](https://github.com/RichWeber "RichWeber (7 commits)")

### Embed Badge

![Health badge](/badges/richweber-duval-calculator/health.svg)

```
[![Health](https://phpackages.com/badges/richweber-duval-calculator/health.svg)](https://phpackages.com/packages/richweber-duval-calculator)
```

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