Package: dsp
Standard deviation of input or sequence of inputs
The StandardDeviation
object computes the standard
deviation for an input or sequence of inputs.
To compute the standard deviation for an input or sequence of inputs:
Define and set up your standard deviation object. See Construction.
Call step
to compute the standard
deviation according to the properties of dsp.StandardDeviation
.
The behavior of step
is specific to each object in
the toolbox.
Note:
Starting in R2016b, instead of using the 
H = dsp.StandardDeviation
returns
a standard deviation System object, H
, that computes
the standard deviation for the columns of input.
H = dsp.StandardDeviation('
returns
a standard deviation System object, PropertyName
',PropertyValue
,...)H
, with each
specified property set to the specified value.

Enable calculation over successive calls to the Set this property to 

Enable resetting in running standard deviation mode Set this property to 

Reset condition for running standard deviation mode Specify event to reset the running standard deviation as one
of  

Dimension to operate along Specify how the standard deviation calculation is performed
over the data as one of  

Numerical dimension to operate along Specify the dimension (onebased value) of the input signal,
over which the object computes the standard deviation. The cannot
exceed the number of dimensions for the input signal. This property
applies when you set the 
clone  Create standard deviation object with same property values 
getNumInputs  Number of expected inputs to step method 
getNumOutputs  Number of outputs of step method 
isLocked  Locked status for input attributes and nontunable properties 
release  Allow property value and input characteristics changes 
reset  Reset states for running standard deviation computation 
step  Calculate standard deviation of input 
This object implements the algorithm, inputs, and outputs described on the Standard Deviation block reference page. The object properties correspond to the block parameters, except:
The Reset port block parameter
corresponds to the ResetInputPort
and ResetCondition
object
properties.