179 lines
7.6 KiB
HTML
179 lines
7.6 KiB
HTML
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<title>Table::addColumn() \ Language (API) \ Processing 2+</title>
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<p class="ref-notice">This reference is for Processing 3.0+. If you have a previous version, use the reference included with your software in the Help menu. If you see any errors or have suggestions, <a href="https://github.com/processing/processing-docs/issues?state=open">please let us know</a>. If you prefer a more technical reference, visit the <a href="http://processing.github.io/processing-javadocs/core/">Processing Core Javadoc</a> and <a href="http://processing.github.io/processing-javadocs/libraries/">Libraries Javadoc</a>.</p>
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<table cellpadding="0" cellspacing="0" border="0" class="ref-item">
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<tr class=""><th scope="row">Class</th><td><p><a href="Table.html">Table</a></p></td></tr>
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<tr class="name-row">
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<th scope="row">Name</th>
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<td><h3>addColumn()</h3></td>
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</tr>
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<tr class="">
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<tr class=""><th scope="row">Examples</th><td><div class="example"><pre >
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Table table;
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void setup() {
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table = new Table();
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table.addColumn("name");
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table.addColumn("age", Table.INT);
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table.addColumn("height", Table.FLOAT);
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TableRow newRow = table.addRow();
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newRow.setString("name", "Jermaine");
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newRow.setInt("age", 15);
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newRow.setFloat("height", 4.567);
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saveTable(table, "data/new.csv");
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}
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// Sketch saves the following to a file called "new.csv":
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// name,age,height
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// Jermaine,15,4.567
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</pre></div>
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</td></tr>
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<tr class="">
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<th scope="row">Description</th>
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<td>
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Use <b>addColumn()</b> to add a new column to a <b>Table</b> object. Typically, you will want to specify a title, so the column may be easily referenced later by name. (If no title is specified, the new column's title will be null.) A column type may also be specified, in which case all values stored in this column must be of the same type (e.g., Table.INT or Table.FLOAT). If no type is specified, the default type of STRING is used.
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</td>
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</tr>
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<tr class=""><th scope="row">Syntax</th><td><pre><kbd></kbd>.addColumn()
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<kbd></kbd>.addColumn(<kbd>title</kbd>)
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<kbd></kbd>.addColumn(<kbd>title</kbd>, <kbd>type</kbd>)</pre></td></tr>
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<tr class=""> <th scope="row">Parameters</th><td><table cellpadding="0" cellspacing="0" border="0"><tr class="">
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<th scope="row" class="code">title</th>
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<td>String: the title to be used for the new column</td>
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</tr>
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<tr class="">
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<th scope="row" class="code">type</th>
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<td>int: the type to be used for the new column: INT, LONG, FLOAT, DOUBLE, or STRING</td>
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</tr></table></td> </tr>
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<tr class=""><th scope="row">Returns</th><td class="code">void</td></tr>
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<tr class=""><th scope="row">Related</th><td><a class="code" href="Table_removeColumn_.html">removeColumn()</a><br /></td></tr>
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</table>
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Updated on April 30, 2017 02:33:20pm EDT<br /><br />
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