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java.lang.Objectprea.data.preparation.DatasetManager
prea.data.preparation.SimpleSplit
public class SimpleSplit
This class helps to split data matrix into train set and test set, based on the test set ratio defined by the user.
Field Summary |
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Fields inherited from class prea.data.preparation.DatasetManager |
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itemCount, itemRateAverage, K_FOLD_CROSS_VALIDATION, maxValue, minValue, PREDEFINED_SPLIT, rateMatrix, SIMPLE_SPLIT, testMatrix, userCount, userRateAverage |
Constructor Summary | |
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SimpleSplit(SparseMatrix originalMatrix,
double testRatio,
int max,
int min)
Construct an instance for simple splitter. |
Method Summary | |
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private void |
split(double testRatio)
Items which will be used for test purpose are moved from rateMatrix to testMatrix. |
Methods inherited from class prea.data.preparation.DatasetManager |
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calculateAverage, getItemRateAverage, getTestMatrix, getUserRateAverage, recoverTestItems |
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 SimpleSplit(SparseMatrix originalMatrix, double testRatio, int max, int min)
Method Detail |
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private void split(double testRatio)
testRatio
- proportion of items which will be used for test purpose.
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