2023-11-13 11:17:25 +00:00
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---
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title: Stata DTA File Processor
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sidebar_label: Stata DTA Codec
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hide_table_of_contents: true
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---
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<head>
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2024-03-22 04:45:40 +00:00
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<script src="https://cdn.sheetjs.com/dta-0.0.2/package/dist/dta.min.js"></script>
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2023-11-13 11:17:25 +00:00
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</head>
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:::info pass
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This discussion focuses on the Stata DTA codec. For integrating SheetJS in a
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Stata extension, there is a [dedicated demo](/docs/demos/extensions/stata).
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:::
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[Stata](https://stata.com/) is a statistical software package. Econometricians
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and social scientists have used Stata for data processing and statistical
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analysis. Many legacy datasets are only available in Stata DTA data files.
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2024-03-22 04:45:40 +00:00
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The SheetJS DTA codec enables websites and automated data pipelines to integrate
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data from DTA files.
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2024-10-07 21:41:19 +00:00
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Source code and project documentation are hosted on the SheetJS Git server at
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2024-04-08 04:47:04 +00:00
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https://git.sheetjs.com/sheetjs/sheetjs/src/branch/master/packages/dta
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:::caution DTA support is considered experimental.
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Great open source software grows with user tests and reports. Issues should be
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reported to [the issue tracker](https://git.sheetjs.com/sheetjs/sheetjs/issues).
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:::
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2024-04-11 17:44:06 +00:00
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:::info Limitations
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In Stata parlance, versions 102-105, 108, 110-115, and 117-121 are supported.
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This corresponds to the known file versions across all releases through Stata 18.
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Consistent with spreadsheet software limitations, the first 1048576 observations
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and 16384 variables are extracted.
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Alias variables (supported in DTA versions 120-121) are not processed.
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:::
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2023-11-13 11:17:25 +00:00
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## Live Demo
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This demo fetches a [sample DTA file](pathname:///dta/pres.dta), parses the data
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using the SheetJS DTA Codec and displays the data in an HTML table using the
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`sheet_to_html` method[^1].
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:::tip pass
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The file input element can be used to parse a file on your computer.
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**All work is performed in the web browser! Data never leaves your machine!**
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If you find any unexpected results or errors in testing, please report an issue
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at [the issue tracker](https://git.sheetjs.com/sheetjs/sheetjs/issues).
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:::
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```jsx live
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function SheetJSDTA() {
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const [__html, setHTML] = React.useState("");
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const [text, setText] = React.useState("");
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const process = (ab) => {
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try {
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/* Initial Setup */
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if(typeof DTA == "undefined") return setText("ERROR: Reload this page!");
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DTA.set_utils(XLSX.utils);
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/* Parse DTA */
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const wb = DTA.parse(new Uint8Array(ab));
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/* Generate HTML */
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setHTML(XLSX.utils.sheet_to_html(wb.Sheets[wb.SheetNames[0]]));
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setText("");
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} catch(e) { setText("ERROR: " + (e && e.message || e)); }
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};
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/* Fetch test file on load */
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React.useEffect(() => { (async() => {
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process(await (await fetch("/dta/pres.dta")).arrayBuffer());
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})(); }, []);
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const good = { backgroundColor: "#C6EFCE", color: "#006100" };
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const bad = { backgroundColor: "#FFC7CE", color: "#9C0006" };
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return ( <>
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<input type="file" onChange={async(e) => {
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process(await e.target.files[0].arrayBuffer());
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}}/>
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{text && <code style={/ERROR/.test(text)?bad:good}>{text}</code>}
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<div dangerouslySetInnerHTML={{ __html }}/>
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</> );
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}
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```
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[^1]: See [`sheet_to_html` in "Utilities"](/docs/api/utilities/html#html-table-output)
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