npm package: @stdlib/datasets-harrison-boston-house-prices
Description: A dataset derived from information collected by the US Census Service concerning housing in Boston, Massachusetts (1978).
Author: The Stdlib Authors
Latest version: 0.2.3

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# Boston House Prices

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

> A dataset derived from information collected by the US Census Service concerning housing in Boston, Massachusetts (1978).

<section class="installation">

## Installation

```bash
npm install @stdlib/datasets-harrison-boston-house-prices
```

</section>

<section class="usage">

## Usage

```javascript
var dataset = require( '@stdlib/datasets-harrison-boston-house-prices' );
```

#### dataset()

Returns a dataset derived from information collected by the US Census Service concerning housing in Boston, Massachusetts (1978).

```javascript
var data = dataset();
/* returns
    [
        {
            'crim': 0.00632,
            'zn': 18.00,
            'indus': 2.310,
            'chas': 0,
            'nox': 0.5380,
            'rm': 6.5750,
            'age': 65.20,
            'dis': 4.0900,
            'rad': 1,
            'tax': 296.0,
            'ptratio': 15.30,
            'b': 396.90,
            'lstat': 4.98,
            'medv': 24.00
        },
        ...
    ]
*/
```

</section>

<!-- /.usage -->

<section class="notes">

## Notes

-   The data consists of 14 attributes:

    -   **crim**: per capita crime rate by town
    -   **zn**: proportion of residential land zoned for lots over 25,000 square feet
    -   **indus**: proportion of non-retail business acres per town
    -   **chas**: Charles River dummy variable (`1` if tract bounds river; `0` otherwise)
    -   **nox**: nitric oxides concentration (parts per 10 million)
    -   **rm**: average number of rooms per dwelling
    -   **age**: proportion of owner-occupied units built prior to 1940
    -   **dis**: weighted distances to five Boston employment centers
    -   **rad**: index of accessibility to radial highways
    -   **tax**: full-value property-tax rate per $10,000
    -   **ptratio**: pupil-teacher ratio by town
    -   **b**: `1000(Bk-0.63)^2` where `Bk` is the proportion of blacks by town
    -   **lstat**: percent lower status of the population
    -   **medv**: median value of owner-occupied homes in $1000's

-   The dataset can be used to predict two dependent variables: 1) nitrous oxide level and 2) median home value.

-   The median home value field seems to be censored at `50.00` (corresponding to a median value of $50,000). Censoring is suggested by the fact that the highest median value of exactly $50,000 is reported in 16 cases, while 15 cases have values between $40,000 and $50,000. Values are rounded to the nearest hundred. Harrison and Rubinfeld do not, however, mention any censoring.

-   As documented by [Gilley and Pace (1996)][@gilley:1996a], the dataset contains eight miscoded median values.

</section>

<!-- /.notes -->

<section class="examples">

## Examples

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

```javascript
var Plot = require( '@stdlib/plot' );
var dataset = require( '@stdlib/datasets-harrison-boston-house-prices' );

var data;
var plot;
var opts;
var x;
var y;
var i;

data = dataset();

// Extract housing data...
x = [];
y = [];
for ( i = 0; i < data.length; i++ ) {
    x.push( data[ i ].rm );
    y.push( data[ i ].medv );
}

// Create a plot instance:
opts = {
    'lineStyle': 'none',
    'symbols': 'closed-circle',
    'xLabel': 'Average Number of Rooms',
    'yLabel': 'Median Value',
    'title': 'Number of Rooms vs Median Value'
};
plot = new Plot( [ x ], [ y ], opts );

// Render the plot:
console.log( plot.render( 'html' ) );
```

</section>

<!-- /.examples -->



* * *

<section class="references">

## References

-   Harrison, David, and Daniel L Rubinfeld. 1978. "Hedonic housing prices and the demand for clean air." _Journal of Environmental Economics and Management_ 5 (1): 81–102. doi:[10.1016/0095-0696(78)90006-2][@harrison:1978a].
-   Gilley, Otis W., and R.Kelley Pace. 1996. "On the Harrison and Rubinfeld Data." _Journal of Environmental Economics and Management_ 31 (3): 403–5. doi:[10.1006/jeem.1996.0052][@gilley:1996a].

</section>

<!-- /.references -->

<!-- <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 a [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-harrison-boston-house-prices-cli`][@stdlib/datasets-harrison-boston-house-prices-cli]</span><span class="delimiter">: </span><span class="description">CLI package for use as a command-line utility.</span>
-   <span class="package-name">[`@stdlib/datasets-harrison-boston-house-prices-corrected`][@stdlib/datasets/harrison-boston-house-prices-corrected]</span><span class="delimiter">: </span><span class="description">A (corrected) dataset derived from information collected by the US Census Service concerning housing in Boston, Massachusetts (1978).</span>
-   <span class="package-name">[`@stdlib/datasets-pace-boston-house-prices`][@stdlib/datasets/pace-boston-house-prices]</span><span class="delimiter">: </span><span class="description">A (corrected) dataset derived from information collected by the US Census Service concerning housing in Boston, Massachusetts (1978).</span>

</section>

<!-- /.related -->

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<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>

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[@harrison:1978a]: https://doi.org/10.1016/0095-0696%2878%2990006-2

[@gilley:1996a]: https://doi.org/10.1006/jeem.1996.0052

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[@stdlib/datasets/pace-boston-house-prices]: https://www.npmjs.com/package/@stdlib/datasets-pace-boston-house-prices

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