npm package: @stdlib/datasets-spam-assassin
Description: Spam Assassin public mail corpus.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
  <summary>
    About stdlib...
  </summary>
  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
  <p>The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.</p>
  <p>When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.</p>
  <p>To join us in bringing numerical computing to the web, get started by checking us out on <a href="https://github.com/stdlib-js/stdlib">GitHub</a>, and please consider <a href="https://opencollective.com/stdlib">financially supporting stdlib</a>. We greatly appreciate your continued support!</p>
</details>

# Spam Assassin

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> The [Spam Assassin][spam-assassin] public mail corpus.

<section class="intro">

</section>

<!-- /.intro -->

<section class="installation">

## Installation

```bash
npm install @stdlib/datasets-spam-assassin
```

</section>

<section class="usage">

## Usage

```javascript
var corpus = require( '@stdlib/datasets-spam-assassin' );
```

#### corpus()

Returns the [Spam Assassin][spam-assassin] public mail corpus.

```javascript
var data = corpus();
// returns [{...},{...},...]
```

Each `array` element has the following fields:

-   `id`: message id (relative to message `group`)
-   `group`: message group
-   `checksum`: object containing checksum info
-   `text`: message text (including headers)

The message `group` may be one of the following:

-   `easy-ham-1`: easier to detect non-spam e-mails (2500 messages)
-   `easy-ham-2`: easier to detect non-spam e-mails collected at a later date (1400 messages)
-   `hard-ham-1`: harder to detect non-spam e-mails (250 messages)
-   `spam-1`: spam e-mails (500 messages)
-   `spam-2`: spam e-mails collected at a later date (1396 messages)

The `checksum` object contains the following fields:

-   `type`: checksum type (e.g., MD5)
-   `value`: checksum value

</section>

<!-- /.usage -->

<section class="examples">

## Examples

<!-- TODO: better example. Possibly a spam classifier. -->

<!-- eslint no-undef: "error" -->

```javascript
var corpus = require( '@stdlib/datasets-spam-assassin' );

var data;
var i;

data = corpus();
for ( i = 0; i < data.length; i++ ) {
    console.log( 'Character Count: %d', data[ i ].text.length );
}
```

</section>

<!-- /.examples -->



<!-- <license> -->

* * *

## License

The data files (databases) are licensed under an [Open Data Commons Public Domain Dedication & License 1.0][pddl-1.0] and their contents are licensed under [Creative Commons Zero v1.0 Universal][cc0]. The software is licensed under [Apache License, Version 2.0][apache-license].

<!-- </license> -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

## See Also

-   <span class="package-name">[`@stdlib/datasets-spam-assassin-cli`][@stdlib/datasets-spam-assassin-cli]</span><span class="delimiter">: </span><span class="description">CLI package for use as a command-line utility.</span>


</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->


<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

<!-- /.stdlib -->

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<section class="links">

[@stdlib/datasets-spam-assassin-cli]: https://www.npmjs.com/package/@stdlib/datasets-spam-assassin-cli

[npm-image]: http://img.shields.io/npm/v/@stdlib/datasets-spam-assassin.svg
[npm-url]: https://npmjs.org/package/@stdlib/datasets-spam-assassin

[test-image]: https://github.com/stdlib-js/datasets-spam-assassin/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/datasets-spam-assassin/actions/workflows/test.yml?query=branch:v0.2.3

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/datasets-spam-assassin/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/datasets-spam-assassin?branch=main

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[chat-image]: https://img.shields.io/badge/zulip-join_chat-brightgreen.svg
[chat-url]: https://stdlib.zulipchat.com

[stdlib]: https://github.com/stdlib-js/stdlib

[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors

[cli-section]: https://github.com/stdlib-js/datasets-spam-assassin#cli
[cli-url]: https://github.com/stdlib-js/datasets-spam-assassin/tree/cli
[@stdlib/datasets-spam-assassin]: https://github.com/stdlib-js/datasets-spam-assassin/tree/main

[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/datasets-spam-assassin/tree/deno
[deno-readme]: https://github.com/stdlib-js/datasets-spam-assassin/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/datasets-spam-assassin/tree/umd
[umd-readme]: https://github.com/stdlib-js/datasets-spam-assassin/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/datasets-spam-assassin/tree/esm
[esm-readme]: https://github.com/stdlib-js/datasets-spam-assassin/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/datasets-spam-assassin/blob/main/branches.md

[pddl-1.0]: http://opendatacommons.org/licenses/pddl/1.0/

[cc0]: https://creativecommons.org/publicdomain/zero/1.0

[apache-license]: https://www.apache.org/licenses/LICENSE-2.0

[ndjson]: http://specs.frictionlessdata.io/ndjson/

[spam-assassin]: http://spamassassin.apache.org/old/publiccorpus/readme.html

</section>

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