CL-random-forest is an implementation of Random Forest for multiclass classification and univariate regression written in Common Lisp. It also includes an implementation of Global Refinement of Random Forest.

It can sometimes be useful to be able to parse chemical compounds in a user-friendly syntax into easy-to-manipulate s-expressions. You also want to be able to go in reverse. You could probably write your own parser — or you could just install the chemical-compounds package.

CL-TYPESETTING is a cross-platform Common Lisp typesetting library for all kind of typesetting applications.

This package provides a PNG Common Lisp system to operate with Portable Network Graphics file format.

CF is a Common Lisp library for doing computations using continued fractions.

This library contains generic hacks meant to be used in any project. It was originally developed for the Cells library.

parse-number is a library of functions for parsing strings into one of the standard Common Lisp number types without using the reader. parse-number accepts an arbitrary string and attempts to parse the string into one of the standard Common Lisp number types, if possible, or else parse-number signals an error of type invalid-number.

This software provides an interface by which Common Lisp programs can access lexicographic data from WordNet.

This package provides highly optimized base64 encoding and decoding. Besides conversion to and from strings, integer conversions are supported. Encoding with Uniform Resource Identifiers is supported by using a modified encoding table that uses only URI-compatible characters.

This package provides an ASN.1 encoder/decoder for Common Lisp.

CL-MOUNT-INFO is a Common Lisp wrapper around getmntent(3) and related C functions to get information about the mounted file system.

This is a purely math-related utility kit, providing functions which can be useful for games, 3D, and GL in general.

SEEDABLE-RNG provides a convenient means of generating random numbers that are seedable with deterministic results across hardware and Common Lisp implementations.

This package provides a compute-effective-slot-definition-initargs generic function that allows for more ergonomic initialization of effective slot definition objects.

This package provides a Common Lisp system helping in scripting, it uses uiop:run-program as a backend.

This package provides a Common Lisp Twitter client featuring full API coverage.

cl-template is a template engine for Common Lisp, taking inspiration from Ruby's ERb module.

This package provides simple format directives to print in colors.

This library implements a basic promise datastructure, which is useful for dealing with asynchronous behaviours. Importantly, this library does not use any other libraries or frameworks, and instead leaves the execution and state transition of promise objects in your control, making it easy to integrate.

Staple is a documentation system. It provides you with a way to generate standalone documentation accumulated from various sources such as readmes, documentation files, and docstrings.

SLY is a fork of SLIME, an IDE backend for Common Lisp. It also features a completely redesigned REPL based on Emacs's own full-featured comint-mode, live code annotations, and a consistent interactive button interface. Everything can be copied to the REPL. One can create multiple inspectors with independent history.

This prompter library is heavily inspired by Emacs' minibuffer and Helm (https://emacs-helm.github.io/helm/). It only deals with the backend side of things, it does not handle any display. Features include asynchronous suggestion computation, multiple sources, actions and resumable prompters.

Supertrace provides a superior Common Lisp trace functionality for debugging and profiling real world applications.

CLX is an X11 client library for Common Lisp. The code was originally taken from a CMUCL distribution, was modified somewhat in order to make it compile and run under SBCL, then a selection of patches were added from other CLXes around the net.