Administrador - The rails administration interface.

Common tools for the Belts game engine

Modular components to encapsulate data and markup in Prawn

It includes maths, datetime, and rspec access test libraries.

Tools for manipulating colors in various color spaces

Trees, Heaps, Timers, Error fitting, etc

A Ruby object-oriented search library for directed and undirected graphs based loosely on Dijkstra's algorithm

Daru (Data Analysis in RUby) is a library for analysis, manipulation and visualization of data. Daru works seamlessly accross interpreters and leverages interpreter-specific optimizations whenever they are available. It is the default data storage gem for all the statsample gems (glm, timeseries, etc.) and can be used with many others like mixed_models, gnuplotrb and iruby. Daru Lite is a fork of Daru that aims to focus on data manipulation and stability.

Package of validations commonly used in Defra Rails based digital services

A collection of Stern-Brocot based models and methods

giblish generates indexed and searchable documents from a tree of asciidoc files.

Generating grids of shapes based on twisty puzzles

IrtRuby is a comprehensive Ruby library for Item Response Theory (IRT) analysis, commonly used in educational assessment, psychological testing, and survey research. Features three core IRT models: • Rasch Model (1PL) - Simple difficulty-only model • Two-Parameter Model (2PL) - Adds item discrimination • Three-Parameter Model (3PL) - Includes guessing parameter Key capabilities: • Robust gradient ascent optimization with adaptive learning rates • Flexible missing data strategies (ignore, treat as incorrect/correct) • Comprehensive performance benchmarking suite • Memory-efficient implementation with excellent scaling • Production-ready with extensive test coverage Perfect for researchers, data scientists, and developers working with educational assessments, psychological measurements, or any binary response data where item and person parameters need to be estimated simultaneously.

Labrat is a linux command-line program for quickly printing labels. Labrat uses the wonderful Prawn gem to generate PDF files with label formatting in mind. With labrat properly configured, printing a label is as simple as: $ labrat 'Income Taxes 2021 ~~ Example Maker, Inc.' And you will get a two-line file-folder label with the text centered. It can print on dymo label printer rolls or Avery sheet labels. It knows the layout of most Avery label types. For Emacs users, labrat includes elisp code for invoking labrat from within a buffer, providing a quick way to print labels.

An adapter for various NLU web services like Aws Lex, Google Dialogflow etc.

Origami is a pure Ruby library to parse, modify and generate PDF documents.

Ruby implementation of pHash library, uses VIPS for image processing

Prawn is a fast, tiny, and nimble PDF generator for Ruby

Generate sets of labels or stickers programmatically using Prawn PDF.

Provides a numeric class Quaternion which is similar to a built-in class Complex.