OnNewBar() enough to make OHLC testing accurate ?

[Icham Aidibe]

Hi !

I kindly noticed how much optimization with OHLC price was quick ! On the other hand, in real it doesn't apply. Would using OnNewBar rather than OnTick made it accurate in real condition ?

Thanks !

[Marco vd Heijden]

yes but if you also use fixed take profit.

for when trailing you still deal with the tick.

[Icham Aidibe]

Marco vd Heijden:

yes but if you also use fixed take profit.

for when trailing you still deal with the tick.

int ExtTimeOut=14400; <-------- timeframe H4
/////////////////////////////
void OnTick(void)
  {
   static datetime limit_time=0; // last trade processing time + timeout
//--- don't process if timeout
   if(TimeCurrent()>=limit_time)
     {
      //--- check for data
      if(Bars(Symbol(),Period())>2*InpMATrendPeriod)
        {
         //--- change limit time by timeout in seconds if processed
         if(ExtExpert.Processing())
            limit_time=TimeCurrent()+ExtTimeOut;
        }
     }
  }

The results with all ticks aren't the same as OHLC even by delaying of 4h (14400s)

[Icham Aidibe]

Icham Aidibe:
The results with all ticks aren't the same as OHLC even by delaying of 4h (14400s)

Since it's 1minutes OHLC, I've also tried with 60s, but no way !

[Icham Aidibe]

I used OnNewBar to be able to obtain the same results using Ontick or OHLC on the tester ! This may help someone else, I didn't yet ended the optimization, but I'm already happy because every tick's optimization are very very very very ...

[Icham Aidibe]

Even using Heiken Ashi based on OHLC price, seems there's no way to reproduce the results got when opt with OHLC.

BUT

There's a way to make the OHLC same as the Each tick mode, which promises a gain of time in future opt. Simply count the bars :

        int bars = Bars(_Symbol, _Period);
        // Trade only if new bar has arrived
        if (LastBars != bars) LastBars = bars;
        else return;

[Icham Aidibe]

Same there. He calls it a ggrrrrrrrrrrrr -al.

https://www.mql5.com/en/code/244

[Icham Aidibe]

It appears that in OHLC there's not only 4 ticks, there's less ticks than the everytick mode, but not 4. Nor Heiken Ashi, nor Renko can do it.

Even when trying to get that at your advantage :

Open ---> High : 50% (luck) then ---> Low ---> Close

Open ---> Low : 50% (luck) then ---> High ---> Close

There's less ticks, they aren't the same nor in time, nor in price value, the way is different than the everytick mode.