dsp.ArrayVectorAdder

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

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dsp.ArrayVectorAdderwill be removed in a future release. Use the+operator instead. For more information, seeCompatibility Considerations.

Description

TheArrayVectorAdderobject 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.

添加一个一天沿着指定的数组来一个向量dimension:

Define and set up your array-vector addition object. SeeConstruction.
Callstepto add the N-D array according to the properties ofdsp.ArrayVectorAdder. The behavior ofstepis specific to each object in the toolbox.

Note

Starting in R2016b, instead of using thestepmethod 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)andy = obj(x)perform equivalent operations.

Construction

ava = dsp.ArrayVectorAdderreturns 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.

Properties

Dimension

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 is1.

VectorSource

Source of vector

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

Vector

Vector values

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

Fixed-Point Properties

FullPrecisionOverride

Full precision override for fixed-point arithmetic

Specify whether to use full precision rules. If you setFullPrecisionOverridetotrue, which is the default, the object computes all internal arithmetic and output data types using full precision rules. These rules provide the most accurate fixed-point numerics. It also turns off the display of other fixed-point properties because they do not apply individually. These rules guarantee that no quantization occurs within the object. Bits are added, as needed, to ensure that no roundoff or overflow occurs. If you setFullPrecisionOverridetofalse, fixed-point data types are controlled through individual fixed-point property settings. For more information, seeFull Precision for Fixed-Point System Objects.

`RoundingMethod`	Rounding method for fixed-point operations Specify the rounding method as \|`Ceiling`\|`Convergent`\|`Floor`\|`Nearest`\|`Round`\|`Simplest`\|`Zero`\|. The default is`Floor`. This property applies only if the object is not in full precision mode.
`OverflowAction`	Overflow action for fixed-point operations Specify the overflow action as \|`Wrap`\|`Saturate`\|. The default is`Wrap`. This property applies only if the object is not in full precision mode.
`VectorDataType`	Vector word and fraction lengths Specify the vector fixed-point data type as \|`Same word length as input`\|`Custom`\|. This property applies when you set the`VectorSource`property to`Property`. The default is`Same word length as input`.
`CustomVectorDataType`	Vector word and fraction lengths Specify the vector fixed-point type as a`numerictype`(Fixed-Point Designer)object with a`Signedness`of`Auto`. This property applies when you set the`VectorSource`property to`Property`and the`VectorDataType`property to`Custom`. The default is`numerictype([],16,15)`.
`AccumulatorDataType`	Accumulator word and fraction lengths Specify the accumulator fixed-point data type as \|`Full precision`\|`Same as first input`\|`Custom`\|. The default is`Full precision`.
`CustomAccumulatorDataType`	Accumulator word and fraction lengths Specify the accumulator fixed-point type as a scaled`numerictype`(Fixed-Point Designer)object with a`Signedness`of`Auto`. This property applies only when the`AccumulatorDataType`property is`Custom`. The default is`numerictype([],32,30)`.
`OutputDataType`	输出单词和分数lengths Specify the output fixed-point data type as \|`Same as accumulator`\|`Same as first input`\|`Custom`\|.
`CustomOutputDataType`	输出单词和分数lengths Specify the output fixed-point type as a scaled`numerictype`(Fixed-Point Designer)object with a`Signedness`of`Auto`. This property applies only when theOutputDataTypeproperty is`Custom`. The default is`numerictype([],16,15)`.

Methods

step	Add vector to N-D array

Common to All System Objects
`release`	Allow System object property value changes

Examples

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Add a Vector To a Matrix

Note

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

Algorithms

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

The array-vector addition object does not haveMinimumorMaximumoptions for data output.

Extended Capabilities

C/C++ Code Generation
Generate C and C++ code using MATLAB® Coder™.

Usage notes and limitations:

SeeSystem Objects in MATLAB Code Generation(MATLAB Coder).

Version History

Introduced in R2012a

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R2021b:`dsp.ArrayVectorAdder`System objectwill be removed

Warns starting in R2021b

dsp.ArrayVectorAdderSystem object will be removed in a future release. Use the+operator instead.

Update Code

This table shows how the System object is typical used and explains how to update existing code to use the+operator.

Discouraged Usage	Recommended Replacement
ava = dsp.ArrayVectorAdder; a = ones(2); x = [1 2]'; y = ava(a, x) y =2×22 2 3 3 If you are using a release prior to R2016b, replace`ava(a,x)`with`step(ava,a,x)`.	y = a + x y =2×22 2 3 3