| <!DOCTYPE html><html><head><title>R: substr</title> |
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| <table style="width: 100%;"><tr><td>substr {SparkR}</td><td style="text-align: right;">R Documentation</td></tr></table> |
| |
| <h2>substr</h2> |
| |
| <h3>Description</h3> |
| |
| <p>An expression that returns a substring. |
| </p> |
| |
| |
| <h3>Usage</h3> |
| |
| <pre><code class='language-R'>## S4 method for signature 'Column' |
| substr(x, start, stop) |
| </code></pre> |
| |
| |
| <h3>Arguments</h3> |
| |
| <table> |
| <tr style="vertical-align: top;"><td><code>x</code></td> |
| <td> |
| <p>a Column.</p> |
| </td></tr> |
| <tr style="vertical-align: top;"><td><code>start</code></td> |
| <td> |
| <p>starting position. It should be 1-base.</p> |
| </td></tr> |
| <tr style="vertical-align: top;"><td><code>stop</code></td> |
| <td> |
| <p>ending position.</p> |
| </td></tr> |
| </table> |
| |
| |
| <h3>Note</h3> |
| |
| <p>substr since 1.4.0 |
| </p> |
| |
| |
| <h3>See Also</h3> |
| |
| <p>Other column_func: |
| <code><a href="../../SparkR/help/alias.html">alias</a>()</code>, |
| <code><a href="../../SparkR/help/between.html">between</a>()</code>, |
| <code><a href="../../SparkR/help/cast.html">cast</a>()</code>, |
| <code><a href="../../SparkR/help/endsWith.html">endsWith</a>()</code>, |
| <code><a href="../../SparkR/help/otherwise.html">otherwise</a>()</code>, |
| <code><a href="../../SparkR/help/over.html">over</a>()</code>, |
| <code><a href="../../SparkR/help/startsWith.html">startsWith</a>()</code> |
| </p> |
| |
| |
| <h3>Examples</h3> |
| |
| <pre><code class="r">## Not run: |
| ##D df <- createDataFrame(list(list(a="abcdef"))) |
| ##D collect(select(df, substr(df$a, 1, 4))) # the result is `abcd`. |
| ##D collect(select(df, substr(df$a, 2, 4))) # the result is `bcd`. |
| ## End(Not run) |
| </code></pre> |
| |
| |
| <hr /><div style="text-align: center;">[Package <em>SparkR</em> version 3.2.2 <a href="00Index.html">Index</a>]</div> |
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