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<div class="subTitle">org.eclipse.january.dataset</div>
<h2 title="Class Operations" class="title">Class Operations</h2>
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<pre>public class <a href="../../../../src-html/org/eclipse/january/dataset/Operations.html#line.19">Operations</a>
extends <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
<dl><dt><span class="strong">Since:</span></dt>
<dd>2.0</dd></dl>
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<caption><span>Nested Classes</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Class and Description</th>
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<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.Addition.html" title="class in org.eclipse.january.dataset">Operations.Addition</a></strong></code>
<div class="block">Addition with boolean or</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.Division.html" title="class in org.eclipse.january.dataset">Operations.Division</a></strong></code>
<div class="block">Division with boolean and of negated second operand</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.DivisionTowardsFloor.html" title="class in org.eclipse.january.dataset">Operations.DivisionTowardsFloor</a></strong></code>
<div class="block">Division with boolean and of negated second operand and rounds down to
negative infinity</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.DivisionWithZero.html" title="class in org.eclipse.january.dataset">Operations.DivisionWithZero</a></strong></code>
<div class="block">Division with boolean and of negated second operand and returns zero if
denominator is zero</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.Exponentiation.html" title="class in org.eclipse.january.dataset">Operations.Exponentiation</a></strong></code>
<div class="block">Exponentiation with boolean and</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.Maximum.html" title="class in org.eclipse.january.dataset">Operations.Maximum</a></strong></code>
<div class="block">Select maximum of a and b</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.Minimum.html" title="class in org.eclipse.january.dataset">Operations.Minimum</a></strong></code>
<div class="block">Select minimum of a and b</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.Multiplication.html" title="class in org.eclipse.january.dataset">Operations.Multiplication</a></strong></code>
<div class="block">Multiplication with boolean and</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.Negation.html" title="class in org.eclipse.january.dataset">Operations.Negation</a></strong></code>
<div class="block">Negation with boolean not</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.Remainder.html" title="class in org.eclipse.january.dataset">Operations.Remainder</a></strong></code>
<div class="block">Remainder</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.Subtraction.html" title="class in org.eclipse.january.dataset">Operations.Subtraction</a></strong></code>
<div class="block">Subtraction with boolean or of negated second operand</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.UseBase.html" title="class in org.eclipse.january.dataset">Operations.UseBase</a></strong></code>
<div class="block">Use given value if <code>a &gt; b</code> else use a</div>
</td>
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<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.UseIfEqualTo.html" title="class in org.eclipse.january.dataset">Operations.UseIfEqualTo</a></strong></code>
<div class="block">Use given value if <code>a == b</code> else use a</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.UseIfGreaterThan.html" title="class in org.eclipse.january.dataset">Operations.UseIfGreaterThan</a></strong></code>
<div class="block">Use given value if <code>a &gt; b</code> else use a</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.UseIfGreaterThanOrEqualTo.html" title="class in org.eclipse.january.dataset">Operations.UseIfGreaterThanOrEqualTo</a></strong></code>
<div class="block">Use given value if <code>a &gt;= b</code> else use a</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.UseIfLessThan.html" title="class in org.eclipse.january.dataset">Operations.UseIfLessThan</a></strong></code>
<div class="block">Use given value if <code>a &lt; b</code> else use a</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static class&nbsp;</code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.UseIfLessThanOrEqualTo.html" title="class in org.eclipse.january.dataset">Operations.UseIfLessThanOrEqualTo</a></strong></code>
<div class="block">Use given value if <code>a &lt;= b</code> else use a</div>
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<td class="colOne"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.html#Operations()">Operations</a></strong>()</code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.html#bracketIfNecessary(java.lang.String)">bracketIfNecessary</a></strong>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;a)</code>
<div class="block">This function returns the name of the dataset, bracketed if it already
includes some mathematical symbol</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.html#createBinaryOperationName(java.lang.String,%20java.lang.String,%20java.lang.String)">createBinaryOperationName</a></strong>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;operator,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;b)</code>
<div class="block">Create a string for a binary operator and its operands</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.html#createFunctionName(java.lang.String,%20java.lang.String...)">createFunctionName</a></strong>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;function,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>...&nbsp;arguments)</code>
<div class="block">Create a string for a function and its arguments</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.html#operate(org.eclipse.january.dataset.BinaryOperation,%20java.lang.Object,%20java.lang.Object,%20org.eclipse.january.dataset.Dataset)">operate</a></strong>(<a href="../../../../org/eclipse/january/dataset/BinaryOperation.html" title="interface in org.eclipse.january.dataset">BinaryOperation</a>&nbsp;op,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;b,
<a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a>&nbsp;o)</code>
<div class="block">Operate on a dataset</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static <a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a></code></td>
<td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/Operations.html#operate(org.eclipse.january.dataset.UnaryOperation,%20java.lang.Object,%20org.eclipse.january.dataset.Dataset)">operate</a></strong>(<a href="../../../../org/eclipse/january/dataset/UnaryOperation.html" title="interface in org.eclipse.january.dataset">UnaryOperation</a>&nbsp;op,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;a,
<a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a>&nbsp;o)</code>
<div class="block">Operate on a dataset</div>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait(long,%20int)" title="class or interface in java.lang">wait</a></code></li>
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<h4>Operations</h4>
<pre>public&nbsp;<a href="../../../../src-html/org/eclipse/january/dataset/Operations.html#line.19">Operations</a>()</pre>
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<h3>Method Detail</h3>
<a name="bracketIfNecessary(java.lang.String)">
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<h4>bracketIfNecessary</h4>
<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a>&nbsp;<a href="../../../../src-html/org/eclipse/january/dataset/Operations.html#line.28">bracketIfNecessary</a>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;a)</pre>
<div class="block">This function returns the name of the dataset, bracketed if it already
includes some mathematical symbol</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>a</code> - </dd>
<dt><span class="strong">Returns:</span></dt><dd>the bracketed if necessary method name</dd></dl>
</li>
</ul>
<a name="createBinaryOperationName(java.lang.String, java.lang.String, java.lang.String)">
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<h4>createBinaryOperationName</h4>
<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../src-html/org/eclipse/january/dataset/Operations.html#line.50">createBinaryOperationName</a>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;operator,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;b)</pre>
<div class="block">Create a string for a binary operator and its operands</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>operator</code> - </dd><dd><code>a</code> - 1st operand name</dd><dd><code>b</code> - 2nd operand name</dd>
<dt><span class="strong">Returns:</span></dt><dd>name of operation</dd></dl>
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<h4>createFunctionName</h4>
<pre>public static&nbsp;<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;<a href="../../../../src-html/org/eclipse/january/dataset/Operations.html#line.62">createFunctionName</a>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;function,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>...&nbsp;arguments)</pre>
<div class="block">Create a string for a function and its arguments</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>function</code> - </dd><dd><code>arguments</code> - </dd>
<dt><span class="strong">Returns:</span></dt><dd>name of function</dd></dl>
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<h4>operate</h4>
<pre>public static&nbsp;<a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a>&nbsp;<a href="../../../../src-html/org/eclipse/january/dataset/Operations.html#line.817">operate</a>(<a href="../../../../org/eclipse/january/dataset/UnaryOperation.html" title="interface in org.eclipse.january.dataset">UnaryOperation</a>&nbsp;op,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;a,
<a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a>&nbsp;o)</pre>
<div class="block">Operate on a dataset</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>op</code> - unary operator</dd><dd><code>a</code> - dataset</dd><dd><code>o</code> - output can be null - in which case, a new dataset is created</dd>
<dt><span class="strong">Returns:</span></dt><dd>op(a), operation on a</dd></dl>
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<h4>operate</h4>
<pre>public static&nbsp;<a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a>&nbsp;<a href="../../../../src-html/org/eclipse/january/dataset/Operations.html#line.1197">operate</a>(<a href="../../../../org/eclipse/january/dataset/BinaryOperation.html" title="interface in org.eclipse.january.dataset">BinaryOperation</a>&nbsp;op,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;a,
<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;b,
<a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a>&nbsp;o)</pre>
<div class="block">Operate on a dataset</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>op</code> - binary operator</dd><dd><code>a</code> - </dd><dd><code>b</code> - </dd><dd><code>o</code> - output can be null - in which case, a new dataset is created</dd>
<dt><span class="strong">Returns:</span></dt><dd>a op b, operation on a and b</dd></dl>
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