I have another question which makes me crazy about the logic how Zorro handles BarOffsets with Pricedata. Here is an example code and a picture to compare.
this is only an experiment to understand the logic. i took the The7 Strategy Signals.
So the Strategie says for a Short Position. Check if OPEN of the last Candle (priceOpen(1)) is above than EMA_High(1) AND the CLOSE of the last candle (priceClose(1)) is below EMA_High(1) AND the CLOSE of the last candle (priceClose(1)) is above EMA_Low(1).
So here is the code and compare the TimeOffset in the two codes:
function run()
{
StartDate = 2012;
BarPeriod = 60;
var* priceH = series(priceHigh());
var* priceL = series(priceLow());
var *EMAHigh = series(EMA(priceH,5));
var *EMALow = series(EMA(priceL, 5));
//Short 0
if(priceOpen(1) > EMAHigh[0]
and priceClose(1) < EMAHigh[1]
and priceClose(1) > EMALow[1])
{
enterShort();
}
PlotBars =150;
plot("EMAH", EMAHigh[0], 0, BLUE);
plot("EMAL", EMALow[0], 0, BLUE);
}
And here is the resulting picture. Interesting to see, that the orders are 1 Candle too late.
But if i change the code-logic, which makes me trouble in my head, to this:
function run()
{
StartDate = 2012;
BarPeriod = 60;
var* priceH = series(priceHigh());
var* priceL = series(priceLow());
var *EMAHigh = series(EMA(priceH,5));
var *EMALow = series(EMA(priceL, 5));
//Short 0
if(priceOpen(0) > EMAHigh[0]
and priceClose(0) < EMAHigh[0]
and priceClose(0) > EMALow[0])
{
enterShort();
}
PlotBars =150;
plot("EMAH", EMAHigh[0], 0, BLUE);
plot("EMAL", EMALow[0], 0, BLUE);
}
Then the results are like in this picture:
And the Orders are exactly at the candle, where they shoudl be.
I don't understand this logic, cause like in the first code, this is how MT4 handles the logic naturally:
MT4: 1. If new candle opens
2. check conditions on last candle, for example MT4-Code: High[1]
3. execute Order on actuall candle with the next tick
Zorro:
1. exactly at close of actual candle
2. check conditions on this candle, which is like the recent last candle in MT4, Zorro: priceHigh(0)
3. execute order on new candle with first tick.
Overall, this is a turnaround in my head. I see problems with some logics, where a trade must be executed on the actual candle (!)befor it closes. for example the actual candle reaches a defined body-size, which implies it as an impulsive candle and i'd like to trade it immediatly instead waiting for candle close.
I read in the manual, that if Zorro is in TRADINGMODE, that the Orderexecution is TICK-based, but how could i calculate the Body from the recent Open to the actual Tick-Price?
This could not be possible, because priceOpen(0) gives me the Openprice of the already closed candle (Open(1) in MT4)
i hope that someone understand what i try to explain here.
