DEV()

Definition Standard deviation. Measures the dispersion of a frequency distribution. A frequency distribution is “the square root of the arithmetic mean of the squares of the deviation of each class frequency from the arithmetic means of the frequency distribution.”

Syntax images/aspen00000193.gif

Parameters SERIES
Required if the formula name declares the SERIES parameter.

INPUT
Required if the formula name declares the INPUT parameter.

PERIOD
Required if the formula name declares the PERIOD parameter.

<shift>
A number, positive or negative, enclosed in brackets defining the number of bars (periods) to shift the formula line. Typically used only in formulas that will be rendered in chart windows.

Example DEV_EX1(SERIES,PERIOD=1)=DEV(SERIES,PERIOD)

DEV_EX2(INPUT,PERIOD=1)=DEV(INPUT,PERIOD[1])