MATLAB® automatically converts arrays to .NET types, as
described in the MATLAB Primitive Type Conversion Table.
To pass an array of character arrays, create a cell array. For all
other types, use the MATLAB NET.createArray function.
MATLAB creates a .NET array, copies the elements from the MATLAB array to the .NET array, and passes it to C#.
To use a .NET array in MATLAB, call the appropriate MATLAB conversion function as shown in Convert Arrays of Primitive .NET Type to MATLAB Type. For
example, suppose that a .NET method returns netArr of type
System.Int32[]:
netArr =
Int32[] with properties:
Length: 5
LongLength: 5
Rank: 1
SyncRoot: [1×1 System.Int32[]]
IsReadOnly: 0
IsFixedSize: 1
IsSynchronized: 0
Convert the array to a MATLAB array of int32.
B = int32(netArr)
B = 1×5 int32 row vector 1 2 3 4 5
Combine the elements in B with a MATLAB array.
A = int32([11 12 13 14 15]); A + B
ans = 1×5 int32 row vector 12 14 16 18 20
You access elements of a .NET array with subscripts, just like with MATLAB arrays.
You cannot refer to the elements of a multidimensional .NET array with a single subscript (linear indexing) like you can in MATLAB, as described in Array Indexing. You must specify the index for each dimension of the .NET array.
You can only use scalar indexing to access elements of a .NET array. The colon operator, described in Creating, Concatenating, and Expanding Matrices, is not supported.
Alternatively, you can access elements of a .NET array using
the Set and Get instance functions.
When using Set or Get you must
use C# array indexing, which is zero-based.
For example, create two System.String arrays,
using the Set function and direct assignment:
d1 = NET.createArray('System.String',3);
d1.Set(0, 'one');
d1.Set(1, 'two');
d1.Set(2, 'three');
d2 = NET.createArray('System.String',3);
d2(1) = 'one';
d2(2) = 'two';
d2(3) = 'zero';
To compare the values of the first elements in each array, type:
System.String.Compare(d1(1),d2.Get(0))
MATLAB displays 0, meaning the strings
are equal.
You must convert a .NET jagged array before using it in a MATLAB command.
If the shape of the array is rectangular, use the corresponding MATLAB numeric function.
If the array is not rectangular, use the cell function.
If the jagged array is multidimensional, you must individually convert the arrays in each dimension.