RelationalGroupedDataset.Mean(String[]) Method
Definition
Important
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Compute the mean value for each numeric columns for each group.
public Microsoft.Spark.Sql.DataFrame Mean (params string[] colNames);member this.Mean : string[] -> Microsoft.Spark.Sql.DataFramePublic Function Mean (ParamArray colNames As String()) As DataFrameParameters
- colNames
- String[]
Name of columns to compute mean on
Returns
New DataFrame object with mean applied