VARIANCE - Amazon Glue DataBrew
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VARIANCE

Returns the variance from the selected source columns in a new column. Variance is defined as Var(X) = [Sum ((X – mean(X))^2)]/Count(X).

Parameters
  • sourceColumns – A JSON-encoded string representing a list of existing columns.

  • targetColumn – A name for the newly created column.

Example

{ "RecipeAction": { "Operation": "VARIANCE", "Parameters": { "sourceColumns": "[\"age\",\"years_in_service\"]", "targetColumn": "VARIANCE Column 1" } } }