Unable to use dsp.MovingAverage()

I'm trying to implement the Moving Average Filter using 'dsp.MovingAverage()'

----My input----

%define the filter with properties

movavg = dsp.MovingAverage(10)

-----Error Output ------

' Unable to resolve the name dsp.MovingAverage.'

Please help me resolve this.

Thanks.

[Walter Roberson]

Do you have DSP toolbox installed?

Are you trying to do this within a MATLAB Function Block in Simulink?

Are you trying to do this in the context of code generation?

[Varun Gupta]

Installing the DSP toolbox solved it.

For other libraries, MATLAB generates the error that this plugin is needed, for this it didn't somhow.

Thank you.