DataFrameStatFunctions.ApproxQuantile Method
Definition
Important
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Calculates the approximate quantiles of a numerical column of a DataFrame.
public double[] ApproxQuantile (string columnName, System.Collections.Generic.IEnumerable<double> probabilities, double relativeError);member this.ApproxQuantile : string * seq<double> * double -> double[]Public Function ApproxQuantile (columnName As String, probabilities As IEnumerable(Of Double), relativeError As Double) As Double()Parameters
- columnName
- String
Column name
- probabilities
- IEnumerable<Double>
A list of quantile probabilities
- relativeError
- Double
The relative target precision to achieve (greater than or equal to 0)
Returns
Double[]
The approximate quantiles at the given probabilities
Remarks
This method implements a variation of the Greenwald-Khanna algorithm (with some speed optimizations).