postgresql-15-hll

HyperLogLog extension for PostgreSQL

This PostgreSQL module introduces a new data type `hll` which is a HyperLogLog data structure. HyperLogLog is a fixed-size, set-like structure used for distinct value counting with tunable precision. For example, in 1280 bytes `hll` can estimate the count of tens of billions of distinct values with only a few percent error.

postgresql-15-debversion

Debian version number type for PostgreSQL

Debian version numbers, used to version Debian binary and source packages, have a defined format, including specifications for how versions should be compared in order to sort them. This package implements a "debversion" type to represent Debian version numbers within the PostgreSQL database. This also includes operators for version comparison and index operator classes for creating indexes on the debversion type.

postgresql-15-plr

Procedural language interface between PostgreSQL and R

R is a language and environment for statistical computing and graphics, providing a wide variety of statistical and graphical techniques (linear and nonlinear modelling, statistical tests, time series analysis, classification, clustering, and so on).

libqt6websockets6

Qt 6 WebSockets library

Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality.

libopencv4.5d-jni

Java jni library for the computer vision library

This package contains Java jni library for the OpenCV (Open Computer Vision) library.

cif2hkl

Convert crystallographic descriptions into HKL F^2 reflection lists

A program that computes structure factors |F^2| for neutrons, x-rays, and electrons from CIF/CFL/SHX/PCR crystallographic descriptions. This is useful to compute the diffraction pattern from materials.