Estimates standard deviation based on a sample. Ignores logical values and text in the sample.
A column that contains numbers corresponding to a sample of a population.
The standard deviation of a sample population.
STDEV.S assumes that the column refers to a sample of the population.
To compute the standard deviation with the entire population, use STDEV.P.
The STDEV.S function internally executes STDEVX.S, without any performance difference.
The following STDEV.S call:
STDEV.S ( table[column] )
corresponds to the following STDEVX.S call:
STDEVX.S ( table, table[column] )
Learn more about STDEV.S in the following articles:
DAX includes a few statistical aggregation functions, such as average, variance, and standard deviation. Other typical statistical calculations require you to write longer DAX expressions. Excel, from this point of view, has a much richer language. The Statistical Patterns are a collection of common statistical calculations: median, mode, moving average, percentile, and quartile. » Read more
Other related functions are:
Contributors: Alberto Ferrari, Marco Russo
MSDN documentation: https://msdn.microsoft.com/en-us/query-bi/dax/stdev-s-function-dax