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java.lang.ObjectjAudioFeatureExtractor.AudioFeatures.FeatureExtractor
jAudioFeatureExtractor.AudioFeatures.MetaFeatureFactory
jAudioFeatureExtractor.AudioFeatures.Derivative
public class Derivative
Class implementing the most basic discrete derivative of a dependant feature. Extends the MetaFeatureFactory abstract class.
| フィールドの概要 |
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| クラス jAudioFeatureExtractor.AudioFeatures.MetaFeatureFactory から継承されたフィールド |
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fe_ |
| クラス jAudioFeatureExtractor.AudioFeatures.FeatureExtractor から継承されたフィールド |
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definition, dependencies, offsets, parent |
| コンストラクタの概要 | |
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Derivative()
Basic constructor that initializes the metaFeature class variables appropiaretely for factory use |
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Derivative(MetaFeatureFactory mff)
A convenience consrtuctor that extends the basic constructor to allow specifying a dependant MetaFeatureFactory object. |
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| メソッドの概要 | |
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java.lang.Object |
clone()
Create an identical copy of this feature. |
MetaFeatureFactory |
defineFeature(FeatureExtractor fe)
Factory class for creating a new FeatureExtraction object. |
double[] |
extractFeature(double[] samples,
double sampling_rate,
double[][] other_feature_values)
Extracts the difference between adjacent points as a basic implementation of a discrete dirivative. |
java.lang.String |
getElement(int index)
Function permitting an unintelligent outside function (ie. |
FeatureDefinition |
getFeatureDefinition()
Overridden to regenerate the feature definition. |
void |
setElement(int index,
java.lang.String value)
Function permitting an unintelligent outside function (ie. |
| クラス jAudioFeatureExtractor.AudioFeatures.MetaFeatureFactory から継承されたメソッド |
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chainMetaFeatureFactory, setParent, setWindow |
| クラス jAudioFeatureExtractor.AudioFeatures.FeatureExtractor から継承されたメソッド |
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getDepenedencies, getDepenedencyOffsets |
| クラス java.lang.Object から継承されたメソッド |
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equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| コンストラクタの詳細 |
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public Derivative()
public Derivative(MetaFeatureFactory mff)
mff - dependant MetaFeatureFactory object| メソッドの詳細 |
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public MetaFeatureFactory defineFeature(FeatureExtractor fe)
MetaFeatureFactory 内の defineFeaturefe - base feature that this feature is to be bvased upon.
public double[] extractFeature(double[] samples,
double sampling_rate,
double[][] other_feature_values)
throws java.lang.Exception
FeatureExtractor 内の extractFeaturesamples - signal to be analyzed. Not used by this featuresampling_rate - sampling rate of the signal. Not used by this featureother_feature_values - provides most recent and next most recent values to be
compared
java.lang.Exception - Throws an informative exception if the feature cannot be
calculated.
public java.lang.String getElement(int index)
throws java.lang.Exception
As a metafeature, recursively calls children for the feature requested.
FeatureExtractor 内の getElementindex - which of AreaMoment's attributes should be edited.
java.lang.Exception
public void setElement(int index,
java.lang.String value)
throws java.lang.Exception
As a metafeature, recursively calls children to set the feature requested.
FeatureExtractor 内の setElementindex - attribute to be setvalue - new value of the attribute
java.lang.Exceptionpublic java.lang.Object clone()
FeatureExtractor 内の clonepublic FeatureDefinition getFeatureDefinition()
FeatureExtractor 内の getFeatureDefinition
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