## Documentation Center |

The Random Integer Generator block generates uniformly distributed
random integers in the range [0, *M*-1], where *M* is
the **M-ary number** defined in the dialog box.

The **M-ary number** can be either a scalar
or a vector. If it is a scalar, then all output random variables are
independent and identically distributed (i.i.d.). If the **M-ary
number** is a vector, then its length must equal the length
of the **Initial seed**; in this case each output
has its own output range.

If the **Initial seed** parameter is a constant,
then the resulting noise is repeatable.

The output signal can be a frame-based matrix, a sample-based
row or column vector, or a sample-based one-dimensional array. These
attributes are controlled by the **Frame-based outputs**, **Samples
per frame**, and **Interpret vector parameters as
1-D** parameters. See Sources and Sinks in *Communications System Toolbox™User's
Guide* for more details.

The number of elements in the **Initial seed** parameter
becomes the number of columns in a frame-based output or the number
of elements in a sample-based vector output. Also, the shape (row
or column) of the **Initial seed** parameter becomes
the shape of a sample-based two-dimensional output signal.

**M-ary number**The positive integer, or vector of positive integers, that indicates the range of output values.

**Initial seed**The initial seed value for the random number generator. The vector length of the seed determines the length of the output vector.

**Sample time**The period of each sample-based vector or each row of a frame-based matrix.

**Frame-based outputs**Determines whether the output is frame-based or sample-based. This box is active only if

**Interpret vector parameters as 1-D**is unchecked.**Samples per frame**The number of samples in each column of a frame-based output signal. This field is active only if

**Frame-based outputs**is checked.**Interpret vector parameters as 1-D**If this box is checked, then the output is a one-dimensional signal. Otherwise, the output is a two-dimensional signal. This box is active only if

**Frame-based outputs**is unchecked.**Output data type**The output type of the block can be specified as a

`boolean`,`int8`,`uint8`,`int16`,`uint16`,`int32`,`uint32`,`single`, or`double`. By default, the block sets this to`double`. Single outputs may lead to different results when compared with double outputs for the same set of parameters. For Boolean typed outputs, the**M-ary number**must be`2`.

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