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#102 in Science

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Used in 2 crates

GPL-3.0-or-later

605KB
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Rust codecov Documentation crates.io

PineAPPL

PineAPPL is a library for recording and storing predictions for high-energy physics observables independently of their parton distribution functions.


lib.rs:

PineAPPL is not an extension of APPLgrid.

Overview

The main type of this crate is Grid, which represents the interpolation grids that PineAPPL implements. Roughly speaking, a Grid is a three-dimensional array of Subgrid objects together with metadata. The three dimensions are

  1. bins, whose limits can be accessed by Grid::bwfl(), and
  2. (perturbative) orders, represented by the type Order and accessible by Grid::orders(),
  3. channels, whose definition is returned by Grid::channels().

Subgrid is a trait and objects that implement it are of the type SubgridEnum. The latter is an enum of different types that are optimized to different scenarios: fast event filling, small storage profile, etc.

Metadata

Metadata is a collection of key--value pairs, in which both keys and values are String objects. In metadata anything a user whishes can be stored. However, there are special keys, which have meaning to PineAPPL and/or its CLI pineappl. This metadata enables the CLI to automatically generate plots that are correctly labeled, for instance. For more applications see also the CLI tutorial.

Dependencies

~3.5MB
~73K SLoC