edu.stanford.rsl.conrad.data

Class PointwiseOperators

java.lang.Object

edu.stanford.rsl.conrad.data.PointwiseOperators

public abstract class PointwiseOperators
extends java.lang.Object

The collection of all operators working point-wise on Grid data.

Constructor Summary

Constructors

Constructor and Description
PointwiseOperators()

Method Summary

Methods

Modifier and Type	Method and Description
static void	abs(Grid data)
static void	addBy(Grid grid, float a) Compute grid = grid + a
static void	addBy(Grid input, Grid sub) Compute grid1 = grid1 - grid2
static Grid	addedBy(Grid input, Grid sub) Compute grid3 = grid1 - grid2
static void	copy(Grid grid1, Grid grid2) Copy data of a Grid to another, not including boundaries
static void	divideBy(Grid grid, float a) Compute grid = grid / a
static void	divideBy(Grid input, Grid divisor)
static Grid	dividedBy(Grid input, Grid divisor)
static double	dotProduct(Grid grid) Compute dot product between grid and itself.
static double	dotProduct(Grid grid1, Grid grid2) Compute dot product between grid1 and grid2
static void	fill(Grid grid, float val) Fill a Grid with the given value
static float	max(Grid grid) Get max of a Grid
static double	mean(Grid data)
static float	min(Grid grid) Get min of a Grid
static Grid	multipliedBy(Grid input, Grid multiplicator)
static void	multiplyBy(Grid grid, float a) Compute grid = grid * a
static void	multiplyBy(Grid input, Grid multiplicator)
static void	removeNegative(Grid grid) Set all negative values in grid as zero.
static void	sqr(Grid grid)
static Grid	sqrcopy(Grid grid)
static void	sqrt(Grid grid)
static Grid	sqrtcopy(Grid grid)
static double	stddev(Grid data, double mean)
static void	subtractBy(Grid grid, float a) Compute grid = grid - a
static void	subtractBy(Grid input, Grid sub) Compute grid1 = grid1 - grid2
static Grid	subtractedBy(Grid input, Grid sub) Compute grid3 = grid1 - grid2
static double	sum(Grid grid) Get sum of all grid elements

Methods inherited from class java.lang.Object

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

Constructor Detail

PointwiseOperators

public PointwiseOperators()

Method Detail

fill

public static void fill(Grid grid,
        float val)

Fill a Grid with the given value

sum

public static double sum(Grid grid)

Get sum of all grid elements

min

public static float min(Grid grid)

Get min of a Grid

max

public static float max(Grid grid)

Get max of a Grid

copy

public static void copy(Grid grid1,
        Grid grid2)

Copy data of a Grid to another, not including boundaries

dotProduct

public static double dotProduct(Grid grid1,
                Grid grid2)

Compute dot product between grid1 and grid2

dotProduct

public static double dotProduct(Grid grid)

Compute dot product between grid and itself. Same as square of l2 norm

addedBy

public static Grid addedBy(Grid input,
           Grid sub)

Compute grid3 = grid1 - grid2

addBy

public static void addBy(Grid input,
         Grid sub)

Compute grid1 = grid1 - grid2

addBy

public static void addBy(Grid grid,
         float a)

Compute grid = grid + a

subtractedBy

public static Grid subtractedBy(Grid input,
                Grid sub)

Compute grid3 = grid1 - grid2

subtractBy

public static void subtractBy(Grid input,
              Grid sub)

Compute grid1 = grid1 - grid2

subtractBy

public static void subtractBy(Grid grid,
              float a)

Compute grid = grid - a

dividedBy

public static Grid dividedBy(Grid input,
             Grid divisor)

divideBy

public static void divideBy(Grid input,
            Grid divisor)

divideBy

public static void divideBy(Grid grid,
            float a)

Compute grid = grid / a

multipliedBy

public static Grid multipliedBy(Grid input,
                Grid multiplicator)

multiplyBy

public static void multiplyBy(Grid input,
              Grid multiplicator)

multiplyBy

public static void multiplyBy(Grid grid,
              float a)

Compute grid = grid * a

removeNegative

public static void removeNegative(Grid grid)

Set all negative values in grid as zero.

mean

public static double mean(Grid data)

stddev

public static double stddev(Grid data,
            double mean)

abs

public static void abs(Grid data)

sqr

public static void sqr(Grid grid)

sqrt

public static void sqrt(Grid grid)

sqrcopy

public static Grid sqrcopy(Grid grid)

sqrtcopy

public static Grid sqrtcopy(Grid grid)