access_time 5 months ago languageEnglish

Spark SQL - Standard Deviation Calculation

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In Spark SQL, function std or   stddev or    stddev_sample  can be used to calculate sample standard deviation from values of a group.  std(expr) stddev(expr) stddev_samp(expr) The first two functions are the alias of stddev_sample function. SELECT ACCT ...
info Last modified by Raymond 5 months ago
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