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(To be removed) Add array to vector along specified dimension

dsp.ArrayVectorAdder will be removed in a future release. Use the + operator instead. For more information, see Compatibility Considerations.


The ArrayVectorAdder object adds an N-D array to a vector along a specified dimension. The length of the vector must equal the size of the N-D array along the specified dimension.

To add an N-D array to a vector along a specified dimension:

  1. Define and set up your array-vector addition object. See Construction.

  2. Call step to add the N-D array according to the properties of dsp.ArrayVectorAdder. The behavior of step is specific to each object in the toolbox.


Starting in R2016b, instead of using the step method to perform the operation defined by the System object™, you can call the object with arguments, as if it were a function. For example, y = step(obj,x) and y = obj(x) perform equivalent operations.


ava = dsp.ArrayVectorAdder returns an array-vector addition object, ava, that adds a vector to an N-D array along the first dimension.

ava = dsp.ArrayVectorAdder('PropertyName',PropertyValue, ...) returns an array-vector addition object, ava, with each property set to the specified value.



Dimension along which to add vector elements to input

Specify the dimension along which to add the input array to the elements of the vector as a positive integer. The length of the vector must match the size of the N-D array along the specified dimension. The default is 1.


Source of vector

Specify the source of the vector values as |Input port | Property |. The default is Input port.


Vector values

Specify the vector values. This property applies only when you set the VectorSource property to Property. The default is [0.5 0.25]. This property is tunable.

 Fixed-Point Properties


stepAdd vector to N-D array
Common to All System Objects

Allow System object property value changes


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If you are using R2016a or an earlier release, replace each call to the object with the equivalent step syntax. For example, obj(x) becomes step(obj,x).

Add a 2-by-1 vector to a 2-by-2 matrix along the first dimension of the array.

ava = dsp.ArrayVectorAdder;
a = ones(2);
x = [1 2]';
y = ava(a, x);


This object implements the algorithm, inputs, and outputs described on the Array-Vector Add block reference page. The object properties correspond to the block parameters, except:

The array-vector addition object does not have Minimum or Maximum options for data output.

Compatibility Considerations

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Not recommended starting in R2021a

Extended Capabilities

Introduced in R2012a