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4 Using MWArra y Classes

Factory Method Usage

newInstance(int[], Object)

New logical array. Values are

initialized with supported data.

newSparse(int[], int[],

Object, int, int, int)

Sparse logical matrix of specified

dimensions and maximum nonzeros.

Values are initialized with supplied

row, column, and data arrays.

newSparse(int[], int[],

Object, int, int)

Sparse logical matrix of specified

dimensions. Values are initialized

with supplied row, column, and data

arrays. Maximum nonzeros are

computed from input data.

newSparse(int[], int[],

Object)

Sparse logical matrix. Values

are initialized with supplied row,

column, and data arrays. Maximum

nonzeros and dimensions are

computed from input data.

newSparse(Object)

Sparse logical matrix. Values are

initialized from supplied full matrix.

These m ethods all return a new MWLogicalArray instance constructed from

the input information. You can use these methods to construct and initialize

an array w ith supplied data, or to construct an array of a specified size

and initialize all values to

false. The main difference is that, exception

for the last

newSparse method, data is supplied to the factory methods in

one-dimensional a rrays with the data arranged in column-wise order.

The following examples rewrite the two-dimensional array constructor

examples using

newInstance:

boolean[] x1 = {true, false, false, true};

int[] x2 = {1, 0, 0, 1};

Boolean[] x3 = {new Boolean(true), new Boolean(false),

new Boolean(false), new Boolean(true)};

String[] x4 = {"true", "false', "false", "true"};

int[] dims = {2, 2};

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