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java.lang.Objectorg.apache.mahout.cf.taste.impl.common.InvertedRunningAverageAndStdDev
public final class InvertedRunningAverageAndStdDev
Constructor Summary | |
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InvertedRunningAverageAndStdDev(RunningAverageAndStdDev delegate)
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Method Summary | |
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void |
addDatum(double datum)
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void |
changeDatum(double delta)
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double |
getAverage()
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int |
getCount()
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double |
getStandardDeviation()
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void |
removeDatum(double datum)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public InvertedRunningAverageAndStdDev(RunningAverageAndStdDev delegate)
Method Detail |
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public void addDatum(double datum)
addDatum
in interface RunningAverage
datum
- new item to add to the running averagepublic void removeDatum(double datum)
removeDatum
in interface RunningAverage
datum
- item to remove to the running averagepublic void changeDatum(double delta)
changeDatum
in interface RunningAverage
delta
- amount by which to change a datum in the running averagepublic int getCount()
getCount
in interface RunningAverage
public double getAverage()
getAverage
in interface RunningAverage
public double getStandardDeviation()
getStandardDeviation
in interface RunningAverageAndStdDev
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