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java.lang.Object de.lmu.ifi.dbs.elki.utilities.scaling.outlier.OutlierLinearScaling
public class OutlierLinearScaling
Scaling that can map arbitrary values to a probability in the range of [0:1]. Transformation is done by linear mapping onto 0:1 using the minimum and maximum values.
Nested Class Summary | |
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static class |
OutlierLinearScaling.Parameterizer
Parameterization class. |
Field Summary | |
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(package private) double |
factor
Scaling factor to use (1/ max - min) |
protected Double |
max
Field storing the Maximum value |
static OptionID |
MAX_ID
Parameter to specify the maximum value Key: -linearscale.max
|
static OptionID |
MEAN_ID
Flag to use the mean as minimum for scaling. |
protected Double |
min
Field storing the Minimum to use |
static OptionID |
MIN_ID
Parameter to specify a fixed minimum to use. |
(package private) boolean |
nozeros
Ignore zero values |
static OptionID |
NOZEROS_ID
Flag to use ignore zeros when computing the min and max. |
(package private) boolean |
usemean
Use the mean for scaling |
Constructor Summary | |
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OutlierLinearScaling()
Constructor. |
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OutlierLinearScaling(Double min,
Double max,
boolean usemean,
boolean nozeros)
Constructor. |
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(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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public static final OptionID MIN_ID
Key: -linearscale.min
public static final OptionID MAX_ID
Key: -linearscale.max
public static final OptionID MEAN_ID
Key: -linearscale.usemean
public static final OptionID NOZEROS_ID
Key: -linearscale.ignorezero
protected Double min
protected Double max
double factor
boolean usemean
boolean nozeros
Constructor Detail |
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public OutlierLinearScaling()
public OutlierLinearScaling(Double min, Double max, boolean usemean, boolean nozeros)
min
- max
- usemean
- nozeros
- Method Detail |
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public double getScaled(double value)
ScalingFunction
getScaled
in interface ScalingFunction
value
- Original value
public void prepare(OutlierResult or)
OutlierScalingFunction
prepare
in interface OutlierScalingFunction
or
- Outlier result to usepublic 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
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