MATLAB BUILDER JA 2 Betriebsanweisung PDF herunterladen (Seite 95)

Guidelines for Working with MWArray Classes

Examples of Using set. T he following examples construct the 2-by-2 matrix

of the p revious exam p le using the

set method. The first example uses a

single index:

int[] dims = {2, 2};

MWNumericArray a =

MWNumericArray.newInstance(dims, MWClassID.DOUBLE,

MWComplexity.REAL);

int index = 0;

double[] values = {1.0, 3.0, 2.0, 4.0};

for (int index = 1; index <= 4; index++)

a.set(index, values[index-1]);

Here is the same exam ple, but this tim e using an index array:

int[] dims = {2, 2};

MWNumericArray a =

MWNumericArray.newInstance(dims, MWClassID.DOUBLE,

MWComplexity.REAL);

int[] index = new int[2];

int k = 0;

for (index[0] = 1; index[0] <= 2; index[0]++)

{

for (index[1] = 1; index[1] <= 2; index[1]++)

a.set(index, ++k);

}

The sparse array example can likewise be rewritten using set as follows:

MWNumericArray a =

MWNumericArray.newSparse(4, 4, 10, MWClassID.DOUBLE,

MWComplexity.REAL);

int[] index = {1, 1};

for (index[0] = 1; index[0] <= 4; index[0]++)

{

for (index[1] = 1; index[1] <= 4; index[1]++)

{

if (index[1] == index[0])

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MATLAB BUILDER JA 2 Betriebsanweisung Seite 95