I am trying to use the PSAR indicator on a moving average to take out noise from raw stock data. But I am receiving an error when I try (see the backtest). I have used the .Of extension before for indicators like PercentRateOfChange where there is only a look back period for a variable, so I wasn't sure how to input the 3 variables of PSAR. The backtest has the indicatorextension.of(PSAR) commented out as it produces an error if not. 

If someone can show me how to input the PSAR with the indicatorextension.of that would be fantastic. 

Thank you,