com.chemaxon.descriptors.common.realvector

Class LinearScalerImpl

java.lang.Object

com.chemaxon.descriptors.common.realvector.LinearScalerImpl

All Implemented Interfaces:

LinearScaler, Serializable

public class LinearScalerImpl
extends Object
implements LinearScaler, Serializable

Simple scaler implementation.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
LinearScalerImpl(double min, double max) Construct a scaler.

Method Summary

Modifier and Type	Method and Description
double	byteDiffSumToDouble(long diffSum) Scale the sum of differences of bytes into double.
double	byteDomainToDouble(double b) Scale byte domain representation to the original.
double	byteSqrDiffSumToDouble(long diffSqrSum) Scale the square sum of differences of bytes into double.
float[]	bytesToFloats(byte[] b) Map LinearScaler.byteToFloat(byte) to an array.
float	byteToFloat(byte b) Scale byte representation to float.
byte[]	floatsToBytes(float[] f) Map LinearScaler.floatToByte(float) to an array.
short[]	floatsToShorts(float[] f) Map LinearScaler.floatToShort(float) to an array.
byte	floatToByte(float f) Scale float into the byte representation.
short	floatToShort(float f) Scale float into the short representation.
double	shortDiffSumToDouble(long diffSum) Scale the sum of differences of shorts into double.
double	shortDomainToDouble(double s) Scale short domain representation to the original.
double	shortSqrDiffSumToDouble(long diffSqrSum) Scale the square sum of differences of shorts into double.
float[]	shortsToFloats(short[] s) Map LinearScaler.shortToFloat(short) to an array.
float	shortToFloat(short s) Scale short representation to float.
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LinearScalerImpl

public LinearScalerImpl(double min,
                        double max)

Construct a scaler.

Parameters:

min - Lower bound of the represented floating points range\

max - Upper bound of the represented floating points range\

Method Detail

byteToFloat

public float byteToFloat(byte b)

Description copied from interface: LinearScaler

Scale byte representation to float.

Specified by:

byteToFloat in interface LinearScaler

Parameters:

b - Byte representation to scale.

Returns:

Scaled value

bytesToFloats

public float[] bytesToFloats(byte[] b)

Description copied from interface: LinearScaler

Map LinearScaler.byteToFloat(byte) to an array.

Specified by:

bytesToFloats in interface LinearScaler

Parameters:

b - Array of bytes

Returns:

Scaled array of floats

shortToFloat

public float shortToFloat(short s)

Description copied from interface: LinearScaler

Scale short representation to float.

Specified by:

shortToFloat in interface LinearScaler

Parameters:

s - Short to scale

Returns:

Scaled value

shortsToFloats

public float[] shortsToFloats(short[] s)

Description copied from interface: LinearScaler

Map LinearScaler.shortToFloat(short) to an array.

Specified by:

shortsToFloats in interface LinearScaler

Parameters:

s - Array of shorts

Returns:

Scaled array of floats

floatToByte

public byte floatToByte(float f)

Description copied from interface: LinearScaler

Scale float into the byte representation.

Specified by:

floatToByte in interface LinearScaler

Parameters:

f - Float value

Returns:

Byte representation

floatsToBytes

public byte[] floatsToBytes(float[] f)

Description copied from interface: LinearScaler

Map LinearScaler.floatToByte(float) to an array.

Specified by:

floatsToBytes in interface LinearScaler

Parameters:

f - Array of floats

Returns:

Scaled array of bytes

floatToShort

public short floatToShort(float f)

Description copied from interface: LinearScaler

Scale float into the short representation.

Specified by:

floatToShort in interface LinearScaler

Parameters:

f - Float value

Returns:

Short representation

floatsToShorts

public short[] floatsToShorts(float[] f)

Description copied from interface: LinearScaler

Map LinearScaler.floatToShort(float) to an array.

Specified by:

floatsToShorts in interface LinearScaler

Parameters:

f - Array of floats

Returns:

Scaled array of shorts

toString

public String toString()

Overrides:

toString in class Object

byteDiffSumToDouble

public double byteDiffSumToDouble(long diffSum)

Description copied from interface: LinearScaler

Scale the sum of differences of bytes into double.

Specified by:

byteDiffSumToDouble in interface LinearScaler

Parameters:

diffSum - Sum of the differences of byte representations

Returns:

Sum of the differences of the float representation

byteSqrDiffSumToDouble

public double byteSqrDiffSumToDouble(long diffSqrSum)

Description copied from interface: LinearScaler

Scale the square sum of differences of bytes into double.

Specified by:

byteSqrDiffSumToDouble in interface LinearScaler

Parameters:

diffSqrSum - Sum of the differences of byte representations

Returns:

Sum of the differences of the float representation

shortDiffSumToDouble

public double shortDiffSumToDouble(long diffSum)

Description copied from interface: LinearScaler

Scale the sum of differences of shorts into double.

Specified by:

shortDiffSumToDouble in interface LinearScaler

Parameters:

diffSum - Sum of the differences of byte representations

Returns:

Sum of the differences of the float representation

shortSqrDiffSumToDouble

public double shortSqrDiffSumToDouble(long diffSqrSum)

Description copied from interface: LinearScaler

Scale the square sum of differences of shorts into double.

Specified by:

shortSqrDiffSumToDouble in interface LinearScaler

Parameters:

diffSqrSum - Sum of the differences of byte representations

Returns:

Sum of the differences of the float representation

byteDomainToDouble

public double byteDomainToDouble(double b)

Description copied from interface: LinearScaler

Scale byte domain representation to the original.

Specified by:

byteDomainToDouble in interface LinearScaler

Parameters:

b - Value in scaled byte domain.

Returns:

Original value

shortDomainToDouble

public double shortDomainToDouble(double s)

Description copied from interface: LinearScaler

Scale short domain representation to the original.

Specified by:

shortDomainToDouble in interface LinearScaler

Parameters:

s - Value in scaled short domain.

Returns:

Original value