Class Array2D<T>

Generic array operations that can be done on arrays of any type, for operators specific to numerical arrays(matrices) see Matrix.cs

Inheritance
object
Array2D<T>
Inherited Members
Namespace: TimeSeriesAnalysis
Assembly: TimeSeriesAnalysis.dll
Syntax
public class Array2D<T>
Type Parameters
Name Description
T

Methods

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Append(T[][], T[])

Combine two arrays into a single array(increasing the number of rows)

Declaration
public static T[][] Append(T[][] array1, T[] vector)
Parameters
Type Name Description
T[][] array1
T[] vector

a vector
Returns
Type Description
T[][]

null if unsuccessful
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Combine(T[][], T[][])

Combine two arrays into a single array(increasing the number of rows)

Declaration
public static T[][] Combine(T[][] array1, T[][] array2)
Parameters
Type Name Description
T[][] array1
T[][] array2
Returns
Type Description
T[][]

null if unsuccessful
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Create(T[])

Create 2d-array with only a single column

Declaration
public static T[,] Create(T[] columnArray)
Parameters
Type Name Description
T[] columnArray
Returns
Type Description
T[,]
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CreateFromList(List<T[]>)

Initializes a 2D array from a list of arrays representing each column in the array

Declaration
public static T[,] CreateFromList(List<T[]> columnList)
Parameters
Type Name Description
List<T[]> columnList
Returns
Type Description
T[,]

null if list columnList dimensions do not match
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CreateJaggedFrom2D(T[,])

Convert a 2D array into a jagged array

Declaration
public static T[][] CreateJaggedFrom2D(T[,] matrix)
Parameters
Type Name Description
T[,] matrix
Returns
Type Description
T[][]
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CreateJaggedFromList(List<T[]>, List<int>)

Convert a list of 1D arrays to a jagged array

Declaration
public static T[][] CreateJaggedFromList(List<T[]> listOfArrays, List<int> indicesToIgnore = null)
Parameters
Type Name Description
List<T[]> listOfArrays
List<int> indicesToIgnore

optionally, indices in each variable to ignore
Returns
Type Description
T[][]

null if unsuccessful
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Created2DFromJagged(T[][])

Convert a jagged array to a 2d-array

Declaration
public static T[,] Created2DFromJagged(T[][] matrix)
Parameters
Type Name Description
T[][] matrix
Returns
Type Description
T[,]
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Downsample(T[,], double, int)

Downsample a matrix where times are rows and variables are columns

Declaration
public static T[,] Downsample(T[,] matrix, double downsampleFactor, int keyindex = 0)
Parameters
Type Name Description
T[,] matrix
double downsampleFactor
int keyindex
Returns
Type Description
T[,]
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GetColumn(T[,], int)

returns the column of the matrix with the given index

Declaration
public static T[] GetColumn(T[,] matrix, int columnNumber)
Parameters
Type Name Description
T[,] matrix
int columnNumber
Returns
Type Description
T[]
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GetColumn(T[][], int)

returns the column of the matrix with the given index

Declaration
public static T[] GetColumn(T[][] matrix, int columnNumber)
Parameters
Type Name Description
T[][] matrix
int columnNumber
Returns
Type Description
T[]
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GetColumns(T[,], int[])

returns all the columns correspoding to columnNumbers in a 2d-array

Declaration
public static T[,] GetColumns(T[,] matrix, int[] columnNumbers = null)
Parameters
Type Name Description
T[,] matrix
int[] columnNumbers
Returns
Type Description
T[,]
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GetRow(T[,], int)

returns the row of the matrix with the given index as an vector

Declaration
public static T[] GetRow(T[,] matrix, int rowNumber)
Parameters
Type Name Description
T[,] matrix
int rowNumber
Returns
Type Description
T[]
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Transpose(T[,])

transposes a 2d-array (rows are turned into columns and vice versa)

Declaration
public static T[,] Transpose(T[,] matrix)
Parameters
Type Name Description
T[,] matrix
Returns
Type Description
T[,]