harlequin is a Ruby wrapper for linear and quadratic discriminant analysis in R for statistical classification. Also allows means testing to determine significance of discriminant variables.

Harmony Ruby API Client

Forward Circuitbox's internal metrics to Harness.

Harpiya Developer Tools

Logs into Harvest and generates a PDF report the way my company likes it

Acces a binary column as a sequence of true/false flags

has_changelogs tracks changes on a model and it's associations for applications that need to have change history. This is not about versioning your model, and the version is however, 0.1.0, so use at your own perril. The changelogs contain a JSON representation of the changes.

Provide default models for ActiveRecord associations

The email equivalent of has_secure_password for ActiveRecord.

Hash helpers to map complex JSON to ruby objects. Handles associations and eager loading and collection injection

Useful method to fetch data from complex hashes and arrays

Provides a DSL for implementing classes which can then be consumed to create pre-defined hashes.

Diffs two hashes

Hash with dynamic setters and getters

Struct with hash as initialization argument, to avoid dependency on positional arguments

Hashematics is a configuration-based object graphing tool which can turn a flat, single dimensional dataset into a structure of deeply nested objects.

Provides an assertion to test for hashes equality.

Create an SHA256 fingerprint of a hash or array.

A refinement which includes a method for flattening nested Hash to one level depth with keys joined with a dot. Also includes a method for reverse operation.

Hashie2 + ActiveModel 3, offering declared properties, validations, JSON serialization/deserialization