apidocs/2.3.0/org/eclipse/january/dataset/Operations.html - gerrit/www.eclipse.org/january - Git at Google

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 <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/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></pre>
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 <dd>2.0</dd>
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 <th class="colFirst" scope="col">Modifier and Type</th>
 <th class="colLast" scope="col">Class and Description</th>
 </tr>
 <tr class="altColor">
 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.Addition.html" title="class in org.eclipse.january.dataset">Operations.Addition</a></span></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><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.Division.html" title="class in org.eclipse.january.dataset">Operations.Division</a></span></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><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.DivisionTowardsFloor.html" title="class in org.eclipse.january.dataset">Operations.DivisionTowardsFloor</a></span></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><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.DivisionWithZero.html" title="class in org.eclipse.january.dataset">Operations.DivisionWithZero</a></span></code>
 <div class="block">Division with boolean and of negated second operand and returns zero if
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 <tr class="altColor">
 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.Exponentiation.html" title="class in org.eclipse.january.dataset">Operations.Exponentiation</a></span></code>
 <div class="block">Exponentiation with boolean and</div>
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 <tr class="rowColor">
 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.Maximum.html" title="class in org.eclipse.january.dataset">Operations.Maximum</a></span></code>
 <div class="block">Select maximum of a and b</div>
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 <tr class="altColor">
 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.Minimum.html" title="class in org.eclipse.january.dataset">Operations.Minimum</a></span></code>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.Remainder.html" title="class in org.eclipse.january.dataset">Operations.Remainder</a></span></code>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
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 <div class="block">Subtraction with boolean or of negated second operand</div>
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 <tr class="rowColor">
 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.UseBase.html" title="class in org.eclipse.january.dataset">Operations.UseBase</a></span></code>
 <div class="block">Use given value if <code>a &gt; b</code> else use a</div>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.UseIfEqualTo.html" title="class in org.eclipse.january.dataset">Operations.UseIfEqualTo</a></span></code>
 <div class="block">Use given value if <code>a == b</code> else use a</div>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.UseIfGreaterThan.html" title="class in org.eclipse.january.dataset">Operations.UseIfGreaterThan</a></span></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><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.UseIfGreaterThanOrEqualTo.html" title="class in org.eclipse.january.dataset">Operations.UseIfGreaterThanOrEqualTo</a></span></code>
 <div class="block">Use given value if <code>a &gt;= b</code> else use a</div>
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 <tr class="rowColor">
 <td class="colFirst"><code>static class&nbsp;</code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.UseIfLessThan.html" title="class in org.eclipse.january.dataset">Operations.UseIfLessThan</a></span></code>
 <div class="block">Use given value if <code>a &lt; b</code> else use a</div>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
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 <div class="block">Use given value if <code>a &lt;= b</code> else use a</div>
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 <td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.html#Operations--">Operations</a></span>()</code>&nbsp;</td>
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 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="class or interface in java.lang">StringBuilder</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.html#bracketIfNecessary-java.lang.String-">bracketIfNecessary</a></span>(<a href="https://docs.oracle.com/javase/8/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 id="i1" class="rowColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.html#createBinaryOperationName-java.lang.String-java.lang.String-java.lang.String-">createBinaryOperationName</a></span>(<a href="https://docs.oracle.com/javase/8/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/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;a,
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 <div class="block">Create a string for a binary operator and its operands</div>
 </td>
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 <tr id="i2" class="altColor">
 <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.html#createFunctionName-java.lang.String-java.lang.String...-">createFunctionName</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;function,
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 <div class="block">Create a string for a function and its arguments</div>
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 <td class="colFirst"><code>static <a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a></code></td>
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        <a href="https://docs.oracle.com/javase/8/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/8/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>
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 <tr id="i4" 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><span class="memberNameLink"><a href="../../../../org/eclipse/january/dataset/Operations.html#operate-org.eclipse.january.dataset.UnaryOperation-java.lang.Object-org.eclipse.january.dataset.Dataset-">operate</a></span>(<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/8/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>
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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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 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/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/8/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="paramLabel">Parameters:</span></dt>
 <dd><code>a</code> - </dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>the bracketed if necessary method name</dd>
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 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/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/8/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/8/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/8/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="paramLabel">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="returnLabel">Returns:</span></dt>
 <dd>name of operation</dd>
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 <pre>public static&nbsp;<a href="https://docs.oracle.com/javase/8/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/8/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/8/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="paramLabel">Parameters:</span></dt>
 <dd><code>function</code> - </dd>
 <dd><code>arguments</code> - </dd>
 <dt><span class="returnLabel">Returns:</span></dt>
 <dd>name of function</dd>
 </dl>
 </li>
 </ul>
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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/8/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="paramLabel">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="returnLabel">Returns:</span></dt>
 <dd>op(a), operation on a</dd>
 </dl>
 </li>
 </ul>
 <a name="operate-org.eclipse.january.dataset.BinaryOperation-java.lang.Object-java.lang.Object-org.eclipse.january.dataset.Dataset-">
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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/8/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/8/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="paramLabel">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="returnLabel">Returns:</span></dt>
 <dd>a op b, operation on a and b</dd>
 </dl>
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