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| <h2 title="Class DTypeUtils" class="title">Class DTypeUtils</h2> |
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| <li>org.eclipse.january.dataset.DTypeUtils</li> |
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| <pre>public class <a href="../../../../src-html/org/eclipse/january/dataset/DTypeUtils.html#line.22">DTypeUtils</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> |
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| <tr class="altColor"> |
| <td class="colFirst"><code>protected static org.slf4j.Logger</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#logger">logger</a></strong></code> </td> |
| </tr> |
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| <th class="colOne" scope="col">Constructor and Description</th> |
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| <td class="colOne"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#DTypeUtils()">DTypeUtils</a></strong>()</code> </td> |
| </tr> |
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| <caption><span>Methods</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colLast" scope="col">Method and Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <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></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#fromDoublesToBiggestPrimitives(double[],%20int)">fromDoublesToBiggestPrimitives</a></strong>(double[] x, |
| int dtype)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang">Number</a></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#fromDoubleToBiggestNumber(double,%20int)">fromDoubleToBiggestNumber</a></strong>(double x, |
| int dtype)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getBestDType(int,%20int)">getBestDType</a></strong>(int atype, |
| int btype)</code> |
| <div class="block">Find dataset type that best fits given types The best type takes into account complex and array datasets</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getBestFloatDType(java.lang.Class)">getBestFloatDType</a></strong>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</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>> cls)</code> |
| <div class="block">Find floating point dataset type that best fits given class The best type takes into account complex and array |
| datasets</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getBestFloatDType(int)">getBestFloatDType</a></strong>(int otype)</code> |
| <div class="block">Find floating point dataset type that best fits given types.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getDType(java.lang.Class)">getDType</a></strong>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><? extends <a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a>> clazz)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getDType(org.eclipse.january.dataset.ILazyDataset)">getDType</a></strong>(<a href="../../../../org/eclipse/january/dataset/ILazyDataset.html" title="interface in org.eclipse.january.dataset">ILazyDataset</a> d)</code> |
| <div class="block">Get dataset type from given dataset</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getDTypeFromClass(java.lang.Class)">getDTypeFromClass</a></strong>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</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>> cls)</code> |
| <div class="block">Get dataset type from an element class</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getDTypeFromClass(java.lang.Class,%20int)">getDTypeFromClass</a></strong>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</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>> cls, |
| int isize)</code> |
| <div class="block">Get dataset type from an element class</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getDTypeFromObject(java.lang.Object)">getDTypeFromObject</a></strong>(<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> obj)</code> |
| <div class="block">Get dataset type from an object.</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/DTypeUtils.html#getDTypeName(org.eclipse.january.dataset.Dataset)">getDTypeName</a></strong>(<a href="../../../../org/eclipse/january/dataset/Dataset.html" title="interface in org.eclipse.january.dataset">Dataset</a> a)</code> </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/DTypeUtils.html#getDTypeName(org.eclipse.january.dataset.ILazyDataset)">getDTypeName</a></strong>(<a href="../../../../org/eclipse/january/dataset/ILazyDataset.html" title="interface in org.eclipse.january.dataset">ILazyDataset</a> a)</code> </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/DTypeUtils.html#getDTypeName(int,%20int)">getDTypeName</a></strong>(int dtype, |
| int itemSize)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getElementalDType(int)">getElementalDType</a></strong>(int otype)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</a><?></code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getElementClass(int)">getElementClass</a></strong>(int dtype)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getElementsPerItem(int)">getElementsPerItem</a></strong>(int dtype)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getItemBytes(int)">getItemBytes</a></strong>(int dtype)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getItemBytes(int,%20int)">getItemBytes</a></strong>(int dtype, |
| int isize)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getLargestDType(int)">getLargestDType</a></strong>(int otype)</code> |
| <div class="block">The largest dataset type suitable for a summation of around a few thousand items without changing from the "kind" |
| of dataset</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#getLength(java.lang.Object)">getLength</a></strong>(<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> b)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#isClassSupportedAsElement(java.lang.Class)">isClassSupportedAsElement</a></strong>(<a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Class.html?is-external=true" title="class or interface in java.lang">Class</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>> comp)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#isDTypeComplex(int)">isDTypeComplex</a></strong>(int dtype)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#isDTypeElemental(int)">isDTypeElemental</a></strong>(int dtype)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#isDTypeFloating(int)">isDTypeFloating</a></strong>(int dtype)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#isDTypeInteger(int)">isDTypeInteger</a></strong>(int dtype)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#isDTypeNumerical(int)">isDTypeNumerical</a></strong>(int dtype)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toBoolean(java.lang.Object)">toBoolean</a></strong>(<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> b)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static byte[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toByteArray(java.lang.Object,%20int)">toByteArray</a></strong>(<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> b, |
| int itemSize)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static double[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toDoubleArray(java.lang.Object,%20int)">toDoubleArray</a></strong>(<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> b, |
| int itemSize)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static float[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toFloatArray(java.lang.Object,%20int)">toFloatArray</a></strong>(<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> b, |
| int itemSize)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static double</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toImag(java.lang.Object)">toImag</a></strong>(<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> b)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static int[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toIntegerArray(java.lang.Object,%20int)">toIntegerArray</a></strong>(<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> b, |
| int itemSize)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static long</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toLong(java.lang.Object)">toLong</a></strong>(<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> b)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static long[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toLongArray(java.lang.Object,%20int)">toLongArray</a></strong>(<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> b, |
| int itemSize)</code> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static double</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toReal(java.lang.Object)">toReal</a></strong>(<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> b)</code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static short[]</code></td> |
| <td class="colLast"><code><strong><a href="../../../../org/eclipse/january/dataset/DTypeUtils.html#toShortArray(java.lang.Object,%20int)">toShortArray</a></strong>(<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> b, |
| int itemSize)</code> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods_inherited_from_class_java.lang.Object"> |
| <!-- --> |
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| <h3>Methods inherited from class 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> |
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| int btype)</pre> |
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| <div class="block">Get dataset type from an element class</div> |
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| <dt><span class="strong">Returns:</span></dt><dd>dataset type</dd></dl> |
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| <div class="block">Get dataset type from an element class</div> |
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| int dtype)</pre> |
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| <pre>public static <a href="https://docs.oracle.com/javase/7/docs/api/java/lang/Number.html?is-external=true" title="class or interface in java.lang">Number</a> <a href="../../../../src-html/org/eclipse/january/dataset/DTypeUtils.html#line.1086">fromDoubleToBiggestNumber</a>(double x, |
| int dtype)</pre> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>x</code> - </dd><dd><code>dtype</code> - </dd> |
| <dt><span class="strong">Returns:</span></dt><dd>biggest native primitive if integer (should test for 64bit?)</dd></dl> |
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| <pre>public static final int <a href="../../../../src-html/org/eclipse/january/dataset/DTypeUtils.html#line.1107">getLength</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> b)</pre> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>b</code> - </dd> |
| <dt><span class="strong">Returns:</span></dt><dd>length of object</dd></dl> |
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| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>dtype</code> - </dd> |
| <dt><span class="strong">Returns:</span></dt><dd>(boxed) class of constituent element</dd></dl> |
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