This PR adds the fitted (bool) attribute to all Stat Operators. This boolean is set to true after an operator has been fit. You can now manually specify to "refit" a fitted StatOperator in the fit method call. And transform checks to ensure all Stat Operators have been fitted before running transform on a graph.
This PR adds the fitted (bool) attribute to all Stat Operators. This boolean is set to true after an operator has been fit. You can now manually specify to "refit" a fitted StatOperator in the fit method call. And transform checks to ensure all Stat Operators have been fitted before running transform on a graph.