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@bridie_mante

To calculate the Parabolic SAR indicator in F#, you can use the following code snippet:

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let calculateSAR (highs: float list) (lows: float list) (acc: float) (acc2: float) (sar: float) (ep: float) (af: float) = let sar' = sar + af * (ep - sar) if acc < List.length highs - 2 then let newEP = max (List.item (acc + 1) highs) ep let newAF = min 0.20 (af + 0.02) let newSAR = if sar' < List.item acc highs then max (List.item (acc - 1) lows) sar' else if sar' > List.item acc lows then min (List.item (acc - 1) highs) sar' else sar' calculateSAR highs lows (acc + 1) (acc2) newSAR newEP newAF else if acc2 < List.length highs - 2 then calculateSAR highs lows acc (acc2 + 1) sar' ep af else sar', ep, af let initializeSAR (highs: float list) (lows: float list) = let startSAR = List.nth highs 0 let startEP = List.nth lows 1 let startAF = 0.02 calculateSAR highs lows 1 1 startSAR startEP startAF // Usage example let highs = [10.0; 12.0; 11.0; 15.0; 14.0; 16.0] let lows = [8.0; 10.0; 9.0; 13.0; 12.0; 14.0] let sar, _, _ = initializeSAR highs lows printfn "Initial SAR: %.2f" sar |

In this code snippet, the `calculateSAR`

function recursively calculates the Parabolic SAR value based on the previous SAR value, Extreme Point (EP), and Acceleration Factor (AF). The `initializeSAR`

function initializes the SAR calculation with the first SAR value, EP, and AF.

You can customize the input data and print out the calculated SAR value using this code snippet.

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