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Version: 8.1

system.math.standardDeviation

This function is used in Python Scripting.

Description​

Given a sequence of numerical values, calculates the simple standard deviation. Standard deviation is a calculated number for how close, or how far the values of that dataset are in relation to the mean.

Returns NaN (Not a Number) if passed an empty sequence.

Client Permission Restrictions​

This scripting function has no Client Permission restrictions.

Syntax​

system.math.standardDeviation(values)

Parameters​

TypeParameterDescription
List[Float]valuesA sequence of numerical values. Accepts both integers and floats. The sequence may not contain None type values. However, passing a None type object instead of a sequence of numerical values will return NaN.

Returns​

Float - The standard deviation of the values parameter, or NaN if the values was empty or null.

Scope​

Gateway, Vision Client, Perspective Session

Code Examples​

Example #1 - Calculating Standard Deviation
# Create a list of values.
values = [3.5, 5.6, 7.8, 7.4, 3.8]

# Print the resulting value.
print system.math.standardDeviation(values)