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Variance


The Variance block passes on either the statistical variance or the standard deviation of the history of its input value. You can choose which it passes with the attribute Output as Std Deviation. If Output as Std Deviation is yes, the block passes the standard deviation. Otherwise, it passes the variance, which is the square of the standard deviation.

Configuring

This is the configuration panel for the Variance block.


Attribute Description
Sample Type and
Sample Size

See "Specifying the Size of the History".
Update Type and
Update Size

See "Specifying When to Propagate Data".
Output as Std Deviation
Whether the block outputs the value as a standard deviation (yes) or variance (no).
Require Full History
See "Specifying What to Do With Partial History".
Erase History when Reset
See "Specifying What Happens to History Upon Reset".
Value on Initialization
See "Specifying an Initial Data Value".

See Also

For more information on how to use this block, see the sections below.

Click here for more information...
Basic Block Behavior
Specifying a History of Values to Maintain

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