Using ParabolicSAR inside strategy

switchfire

Good morning,
I'm having difficulty implementing the ParabolicSAR in my strategy. I believe I've done the params and initialization correctly (not for sure, though), but I'm not sure how to add the conditions in. Am I supposed to build the calculations and use a variable for the condition? Or is that done inside backtrader? I want to include a psar condition inside the buy/sell conditions.

Params:

('period', 2), # psar period ('start' in pine)
('af', 0.005), #psar af ('increment' in pine)
('afmax', 1), #psar afmax ('maximum' in pine)

init:

self.psar = bt.indicators.ParabolicSAR(
            period = self.p.period,# Period
            plot = False,
            af = self.p.af,
            afmax = self.p.afmax,
            )

I am new, thank you for your patience.

switchfire

I have searched google and backtrader references with no luck. I may just need a point in the right direction.