The following code uses our new functions to synthetically keep track of our trading to determine when to enter a new trade. The Turtle System only took trades after a losing trade took place. Even with the Virtual Trade functions you still need to keep track of whether the entries/exits generated a profitable trade. It simple enough to track the real trades – compare the entries/exits when a the market position changes.

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*inputs: absEntryChanLen(55),entryChanlen(20),exitChanLen(10),lastTradeLoserFilter(false);
vars:lastTradeLoser(true),mp(0),virtmp(0),tradeProfit(0),virtBuyPrice(0),virtSellPrice(0),
myFillPrice(0);
mp = marketPosition;
If mp <> 1 and mp[1] = 1 then
Begin
tradeProfit = ExitPrice(1) - EntryPrice(1);
If tradeProfit > 0 then lastTradeLoser = false;
print(date," Long Trader ",tradeProfit);
end;
If mp <> -1 and mp[1] = -1 then
Begin
tradeProfit = EntryPrice(1) - ExitPrice(1);
If tradeProfit > 0 then lastTradeLoser = false;
print(date," Short Trader ",tradeProfit," ",lastTradeLoser);
end;
If lastTradeLoserFilter = False then lastTradeLoser = True;
If lastTradeLoser = False then
Begin
print(date," In Virtual Section And VirtTmp = ",virTmp);
If(virtmp = 1) then
Begin
if(virtualLongExit(lowest(low[1],exitChanLen),1,myFillPrice) =1) then
Begin
tradeProfit = myFillPrice - virtBuyPrice;
If tradeProfit < 0 then lastTradeLoser = true;
virtmp = 0;
end;
end;
If(virtmp = -1) then
Begin
if(virtualShortExit(highest(high[1],exitChanLen),1,myFillPrice) =1) then
Begin
tradeProfit = virtSellPrice - myFillPrice;
If tradeProfit < 0 then lastTradeLoser = true;
virtmp = 0;
end;
end;
if(virtualBuy(highest(high[1],entryChanLen),1,myFillPrice) = 1) then
Begin
if virtmp <> 1 then
begin
virtBuyPrice = myFillPrice;
virtmp = 1;
tradeProfit = 0;
If virtmp[1] = -1 then tradeProfit = virtSellPrice - virtBuyPrice;
If tradeProfit < 0 then lastTradeLoser = true;
end;
end;
if(virtualSell(lowest(low[1],entryChanLen),1,myFillPrice) = 1) then
Begin
if virtmp <> -1 then
begin
virtsellPrice = myFillPrice;
virtmp = -1;
tradeProfit = 0;
If virtmp[1] = 1 then tradeProfit = virtBuyPrice - virtSellPrice;
If tradeProfit < 0 then lastTradeLoser = true;
end;
end;
print("End of Virtual Module : virTmp = ",virTmp);
end; *