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[[Category: | [[Category:Functions_Used_in_where_Expressions]] | ||
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====stdev==== | ====stdev==== | ||
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'''Example''' | '''Example''' | ||
stdev(C1) where C2 >2; | ''number n = stdev(C1) where C2 >2; '' | ||
''print(n); // return standard deviation value '' | |||
'''Availability''' | '''Availability''' | ||
Latest revision as of 10:47, 20 December 2011
stdev
Estimates standard deviation based on a sample. The standard deviation is a measure of how widely values are dispersed from the average value (the mean). All empty values are ignored.
Calculates
where x is the sample mean average(DCSColumn)… and n is the sample size
Syntax
stdev(dcsColumn)
Arguments
dcsColumn: is a numeric dcs column (column whose data type is Number)
Example
number n = stdev(C1) where C2 >2;
print(n); // return standard deviation value
Availability
All