stddev() returns the standard deviation of non-null values in a specified column.
Function type signature
(<-tables: stream[A], ?column: string, ?mode: string) => stream[B] where A: Record, B: Record
Column to operate on. Default is
Standard deviation mode or type of standard deviation to calculate.
- sample: Calculate the sample standard deviation where the data is considered part of a larger population.
- population: Calculate the population standard deviation where the data is considered a population of its own.
Input data. Default is piped-forward data (
Return the standard deviation of values in each table
import "sampledata" sampledata.int() |> stddev()
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