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<h2 title="Class ALSSuite" class="title">Class ALSSuite</h2>
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<li>java.lang.Object</li>
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<li>org.apache.spark.SparkFunSuite</li>
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<li>org.apache.spark.ml.recommendation.ALSSuite</li>
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<pre>public class <span class="strong">ALSSuite</span>
extends org.apache.spark.SparkFunSuite
implements <a href="../../../../../org/apache/spark/mllib/util/MLlibTestSparkContext.html" title="interface in org.apache.spark.mllib.util">MLlibTestSparkContext</a>, <a href="../../../../../org/apache/spark/Logging.html" title="interface in org.apache.spark">Logging</a></pre>
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<td class="colOne"><code><strong><a href="../../../../../org/apache/spark/ml/recommendation/ALSSuite.html#ALSSuite()">ALSSuite</a></strong>()</code> </td>
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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/recommendation/ALSSuite.html#afterAll()">afterAll</a></strong>()</code> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/recommendation/ALSSuite.html#beforeAll()">beforeAll</a></strong>()</code> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>scala.Tuple2<<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>>,<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>>></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/recommendation/ALSSuite.html#genExplicitTestData(int, int, int, double, long)">genExplicitTestData</a></strong>(int numUsers,
int numItems,
int rank,
double noiseStd,
long seed)</code>
<div class="block">Generates an explicit feedback dataset for testing ALS.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>scala.Tuple2<<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>>,<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>>></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/recommendation/ALSSuite.html#genImplicitTestData(int, int, int, double, long)">genImplicitTestData</a></strong>(int numUsers,
int numItems,
int rank,
double noiseStd,
long seed)</code>
<div class="block">Generates an implicit feedback dataset for testing ALS.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/ml/recommendation/ALSSuite.html#testALS(org.apache.spark.rdd.RDD, org.apache.spark.rdd.RDD, int, int, double, boolean, int, int, double)">testALS</a></strong>(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>> training,
<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>> test,
int rank,
int maxIter,
double regParam,
boolean implicitPrefs,
int numUserBlocks,
int numItemBlocks,
double targetRMSE)</code>
<div class="block">Test ALS using the given training/test splits and parameters.</div>
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<code><a href="../../../../../org/apache/spark/mllib/util/MLlibTestSparkContext.html#sc()">sc</a>, <a href="../../../../../org/apache/spark/mllib/util/MLlibTestSparkContext.html#sqlContext()">sqlContext</a></code></li>
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<h3>Methods inherited from interface org.apache.spark.<a href="../../../../../org/apache/spark/Logging.html" title="interface in org.apache.spark">Logging</a></h3>
<code><a href="../../../../../org/apache/spark/Logging.html#initializeIfNecessary()">initializeIfNecessary</a>, <a href="../../../../../org/apache/spark/Logging.html#initializeLogging()">initializeLogging</a>, <a href="../../../../../org/apache/spark/Logging.html#isTraceEnabled()">isTraceEnabled</a>, <a href="../../../../../org/apache/spark/Logging.html#log_()">log_</a>, <a href="../../../../../org/apache/spark/Logging.html#log()">log</a>, <a href="../../../../../org/apache/spark/Logging.html#logDebug(scala.Function0)">logDebug</a>, <a href="../../../../../org/apache/spark/Logging.html#logDebug(scala.Function0, java.lang.Throwable)">logDebug</a>, <a href="../../../../../org/apache/spark/Logging.html#logError(scala.Function0)">logError</a>, <a href="../../../../../org/apache/spark/Logging.html#logError(scala.Function0, java.lang.Throwable)">logError</a>, <a href="../../../../../org/apache/spark/Logging.html#logInfo(scala.Function0)">logInfo</a>, <a href="../../../../../org/apache/spark/Logging.html#logInfo(scala.Function0, java.lang.Throwable)">logInfo</a>, <a href="../../../../../org/apache/spark/Logging.html#logName()">logName</a>, <a href="../../../../../org/apache/spark/Logging.html#logTrace(scala.Function0)">logTrace</a>, <a href="../../../../../org/apache/spark/Logging.html#logTrace(scala.Function0, java.lang.Throwable)">logTrace</a>, <a href="../../../../../org/apache/spark/Logging.html#logWarning(scala.Function0)">logWarning</a>, <a href="../../../../../org/apache/spark/Logging.html#logWarning(scala.Function0, java.lang.Throwable)">logWarning</a></code></li>
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<h4>ALSSuite</h4>
<pre>public ALSSuite()</pre>
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<h4>beforeAll</h4>
<pre>public void beforeAll()</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/mllib/util/MLlibTestSparkContext.html#beforeAll()">beforeAll</a></code> in interface <code><a href="../../../../../org/apache/spark/mllib/util/MLlibTestSparkContext.html" title="interface in org.apache.spark.mllib.util">MLlibTestSparkContext</a></code></dd>
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<pre>public void afterAll()</pre>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/mllib/util/MLlibTestSparkContext.html#afterAll()">afterAll</a></code> in interface <code><a href="../../../../../org/apache/spark/mllib/util/MLlibTestSparkContext.html" title="interface in org.apache.spark.mllib.util">MLlibTestSparkContext</a></code></dd>
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<h4>genExplicitTestData</h4>
<pre>public scala.Tuple2<<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>>,<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>>> genExplicitTestData(int numUsers,
int numItems,
int rank,
double noiseStd,
long seed)</pre>
<div class="block">Generates an explicit feedback dataset for testing ALS.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>numUsers</code> - number of users</dd><dd><code>numItems</code> - number of items</dd><dd><code>rank</code> - rank</dd><dd><code>noiseStd</code> - the standard deviation of additive Gaussian noise on training data</dd><dd><code>seed</code> - random seed</dd>
<dt><span class="strong">Returns:</span></dt><dd>(training, test)</dd></dl>
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<h4>genImplicitTestData</h4>
<pre>public scala.Tuple2<<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>>,<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>>> genImplicitTestData(int numUsers,
int numItems,
int rank,
double noiseStd,
long seed)</pre>
<div class="block">Generates an implicit feedback dataset for testing ALS.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>numUsers</code> - number of users</dd><dd><code>numItems</code> - number of items</dd><dd><code>rank</code> - rank</dd><dd><code>noiseStd</code> - the standard deviation of additive Gaussian noise on training data</dd><dd><code>seed</code> - random seed</dd>
<dt><span class="strong">Returns:</span></dt><dd>(training, test)</dd></dl>
</li>
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<a name="testALS(org.apache.spark.rdd.RDD, org.apache.spark.rdd.RDD, int, int, double, boolean, int, int, double)">
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<h4>testALS</h4>
<pre>public void testALS(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>> training,
<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a><<a href="../../../../../org/apache/spark/ml/recommendation/ALS.Rating.html" title="class in org.apache.spark.ml.recommendation">ALS.Rating</a><java.lang.Object>> test,
int rank,
int maxIter,
double regParam,
boolean implicitPrefs,
int numUserBlocks,
int numItemBlocks,
double targetRMSE)</pre>
<div class="block">Test ALS using the given training/test splits and parameters.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>training</code> - training dataset</dd><dd><code>test</code> - test dataset</dd><dd><code>rank</code> - rank of the matrix factorization</dd><dd><code>maxIter</code> - max number of iterations</dd><dd><code>regParam</code> - regularization constant</dd><dd><code>implicitPrefs</code> - whether to use implicit preference</dd><dd><code>numUserBlocks</code> - number of user blocks</dd><dd><code>numItemBlocks</code> - number of item blocks</dd><dd><code>targetRMSE</code> - target test RMSE</dd></dl>
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