Package adams.data.threeway

Class L1PointUtils

java.lang.Object

adams.data.threeway.L1PointUtils

public class L1PointUtils
extends Object

A helper class for the Level 2 points of a given Level 1 point.

Author:

fracpete (fracpete at waikato dot ac dot nz)

Field Summary

Fields

Modifier and Type	Field	Description
protected static L2PointComparator	m_Comparator	the comparator in use.

Constructor Summary

Constructors

Constructor	Description
L1PointUtils()

Method Summary

Modifier and Type	Method	Description
static L1Point	closest(long x, L1Point left, L1Point right)	Returns a level 1 point with the level 2 data of the closest of the two level 1 points.
static int	findMassCharge(List<L2Point> points, double x)	Returns the index in points of the given timestamp.
static int	findX(List<L2Point> points, L2Point p)	Returns the index in points of the given level 2 point, -1 if not found.
static double[]	getHistogram(L1Point l1, int numBins)	Generates data for a histogram display.
static L1Point	interpolate(double x, L1Point left, L1Point right)	Interpolates the two level 1 points and the corresponding level 2 data.
static L1Point	merge(L1Point point1, L1Point point2)	Merges the two level 1 points.
static double[]	toDoubleArray(L1Point c)	Returns the abundance as double array.
static double[]	toDoubleArray(List<L2Point> data)	Returns the abundance as double array.

Methods inherited from class java.lang.Object

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

Field Detail

m_Comparator

protected static L2PointComparator m_Comparator

the comparator in use.

Constructor Detail

L1PointUtils

public L1PointUtils()

Method Detail

findX

public static int findX(List<L2Point> points,
                        L2Point p)

Returns the index in points of the given level 2 point, -1 if not found.

Parameters:

points - the list of level 2 points to search in

p - the point to get the index for

Returns:

the index or -1 if not found

findMassCharge

public static int findMassCharge(List<L2Point> points,
                                 double x)

Returns the index in points of the given timestamp.

Parameters:

points - the list of level points to search in

x - the X to get the index for

Returns:

the index

merge

public static L1Point merge(L1Point point1,
                            L1Point point2)

Merges the two level 1 points. It sums up the Y of each point and also merges the level 2 data (level 2 points with the same X will get summed up as well).

Parameters:

point1 - the first point

point2 - the second point

Returns:

the merged data

getHistogram

public static double[] getHistogram(L1Point l1,
                                    int numBins)

Generates data for a histogram display. It counts how many level 2 points have the same Y in the level 1 point.

Parameters:

l1 - the level 1 point to generate the histogram for

numBins - the number of bins to generate

Returns:

the histogram data

toDoubleArray

public static double[] toDoubleArray(L1Point c)

Returns the abundance as double array.

Parameters:

c - the GC point to turn into a double array

Returns:

the abundances as double array

toDoubleArray

public static double[] toDoubleArray(List<L2Point> data)

Returns the abundance as double array.

Parameters:

data - the MS points to turn into a double array

Returns:

the abundances as double array

interpolate

public static L1Point interpolate(double x,
                                  L1Point left,
                                  L1Point right)

Interpolates the two level 1 points and the corresponding level 2 data.

Parameters:

x - the timestamp we have to interpolate for

left - the left level 1 point

right - the right level 1 point

Returns:

the interpolated level 1 point

closest

public static L1Point closest(long x,
                              L1Point left,
                              L1Point right)

Returns a level 1 point with the level 2 data of the closest of the two level 1 points.

Parameters:

x - the X we have to interpolate for

left - the left level 1 point

right - the right level 1 point

Returns:

the interpolated level 1point