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java.lang.Object de.lmu.ifi.dbs.elki.utilities.scaling.outlier.OutlierMinusLogScaling
public class OutlierMinusLogScaling
Scaling function to invert values by computing -1 * Math.log(x)
Field Summary | |
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(package private) double |
max
Maximum value seen, set by prepare(de.lmu.ifi.dbs.elki.database.Database>, de.lmu.ifi.dbs.elki.result.Result, de.lmu.ifi.dbs.elki.result.outlier.OutlierResult) |
(package private) double |
mlogmax
Maximum -log value seen, set by prepare(de.lmu.ifi.dbs.elki.database.Database>, de.lmu.ifi.dbs.elki.result.Result, de.lmu.ifi.dbs.elki.result.outlier.OutlierResult) |
Constructor Summary | |
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OutlierMinusLogScaling()
Constructor, adhering to Parameterizable |
Method Summary | |
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double |
getMax()
Get maximum resulting value. |
double |
getMin()
Get minimum resulting value. |
double |
getScaled(double value)
Transform a given value using the scaling function. |
void |
prepare(Database<?> db,
Result result,
OutlierResult or)
Prepare is called once for each data set, before getScaled() will be called. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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double max
prepare(de.lmu.ifi.dbs.elki.database.Database>, de.lmu.ifi.dbs.elki.result.Result, de.lmu.ifi.dbs.elki.result.outlier.OutlierResult)
double mlogmax
prepare(de.lmu.ifi.dbs.elki.database.Database>, de.lmu.ifi.dbs.elki.result.Result, de.lmu.ifi.dbs.elki.result.outlier.OutlierResult)
Constructor Detail |
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public OutlierMinusLogScaling()
Parameterizable
Method Detail |
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public double getScaled(double value)
ScalingFunction
getScaled
in interface ScalingFunction
value
- Original value
public double getMin()
ScalingFunction
Double.NaN
or Double.NEGATIVE_INFINITY
.
getMin
in interface ScalingFunction
public double getMax()
ScalingFunction
Double.NaN
or Double.POSITIVE_INFINITY
.
getMax
in interface ScalingFunction
public void prepare(Database<?> db, Result result, OutlierResult or)
OutlierScalingFunction
prepare
in interface OutlierScalingFunction
db
- Database usedresult
- Result objector
- Outlier result to use
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