Selective Standard Normal: Z-Score

Abbreviation: SelectiveStndNormZScore
Category: Selective Calculation
Input Parameters:

Name Range Default
Time Series
Condition
Periods Int >= 2 10

 
Calculation:

X – SelectiveAvg( X) 

SelectiveStndDev(X, n) 

where
X = Time Series
n = Periods

SelectiveAvg represents Selective Simple Moving Average
SelectiveStndDev StndDev represents Selective Standard Deviation

 
Discussion:

Analyzes only the time periods for which the condition is true and provides a measure of a time series value relative to its mean expressed relative to its standard deviation over the last n of those time periods. A value of one indicates a value one standard deviation above the mean, while a value of two indicates a value two standard deviations above the mean. Likewise, a value of negative one indicates a value one standard deviation below the mean, while a value of negative two indicates a value two standard deviations below the mean.
 

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