Tableau CRM SAQL Developer Guide

Overview
Quick Start
Examples
SAQL Reference
SAQL Basic Elements
SAQL Operators
SAQL Statements
SAQL Functions
Aggregate Functions
avg() or average()
count()
first()
last()
max()
median()
min()
sum()
unique()
stddev()
stddevp()
var()
varp()
percentile_cont()
percentile_disc()
regr_intercept()
regr_slope()
regr_r2()
grouping()
Date Functions
Time Zone Date Functions (Beta)
Work with Custom Fiscal Year Data
String Functions
Math Functions
Windowing Functions
coalesce
Query Performance
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stddevp()

Returns the population standard deviation of the values in a field. Accepts measure fields as input but not expressions.

Example - Calculate the Population Standard Deviation of Amount

Use stddevp() to calculate the population standard deviation of the amount of each opportunity. Group by product family to see which type of product has the greatest variability in deal size.

1q = load "DTC_Opportunity_SAMPLE";
2q = group q by 'Product_Family';
3q = foreach q generate 'Product_Family' as 'Product_Family', stddevp('Amount') as 'stddevp_Amount';