求教股市追蹤止利程式碼

zegawong

各位大大, 我想寫一段追蹤止利的程式碼
條件是買入後最高收市價回落 5% 賣出,
但寫成了運作不成功, 煩請斧正~~ 拍謝~

inputs: StopLossPct( .08 ), PosClosePrecent(.95);

variables : MA50(0), PosClose(0);

MA50 = XAverage(close,50);

condition1 = low cross below MA50 and close < MA50;

if condition1 then buy next bar at market;

PosClose = Close[1];

if Close>PosClose then
             PosClose = Close
             else
             PosClose = PosClose[1];

condition2 = close <= (PosClose * PosClosePrecent);

if condition2 then sell next bar at market;


SetStopShare ;
if MarketPosition = 1 then
        SetStopLoss( EntryPrice * StopLossPct )