How to Write a Loop of a Loop for Different TF | Forex Factory

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How to Write a Loop of a Loop for Different TF

  • #1
  • First Post: Edited Mar 30, 2022 3:06am Mar 29, 2022 2:58pm | Edited Mar 30, 2022 3:06am
Hi coders,

Is it possible to get a loop of a loop or multiple loops that to get the number of count ? Let me give a scenario :-

Inserted Code
   int cntBigBarTF1=0; for(int i=1; i<=100; i++) {
   double cOp0=iOpen(symbol,60,i), cCs0=iClose(symbol,60,i), cATR0=iATR(symbol,60,5,i);
   if(MathAbs(cOp0-cCs0)>cATR0) cntBigBarTF1++;
   }
 
   int cntBigBarTF2=0; for(int i=??; i<=??; i++) {
   double cOp0=iOpen(symbol,5,i), cCs0=iClose(symbol,5,i), cATR0=iATR(symbol,5,5,i);
   if(MathAbs(cOp0-cCs0)>cATR0) cntBigBarTF2++;
   }

Firstly, for 100 bars, I want to get the count number of big bars that meeting my conditions for TF=60 (cntBigBarTF1).

Subsequently, from the 1st loop (TF=60), ONLY the "selected big bar" that meeting the required conditions will be used for lower TF=5's calculation, in order to get the count number of big bars for lower TF=5 (cntBigBarTF2).

How to merge the above 2 loops into one loop ? My ultimate target is to get the count number of lower TF=5 that meeting both loops' conditions. Kindly advise, thanks.
  • #2
  • Mar 29, 2022 10:26pm Mar 29, 2022 10:26pm
when the condition is met in the first loop (TF=60) rather than just count that bar and move on, stop and open your second loop but you'll need to catch the Open Time of the 60 min bar and work out which 5 min bar opens at that time and adjust your loop to work through the 12x 5 min bars within that one 60 min bar.
then go back to the next time your condition is met
" check out The Traders Outpost "
  • #3
  • Edited Mar 30, 2022 2:55am Mar 29, 2022 10:39pm | Edited Mar 30, 2022 2:55am
Quoting RedLineFred
when the condition is met in the first loop (TF=60) rather than just count that bar and move on, stop and open your second loop but you'll need to catch the Open Time of the 60 min bar and work out which 5 min bar opens at that time and adjust your loop to work through the 12x 5 min bars within that one 60 min bar. then go back to the next time your condition is met
Hi RedLineFred, could you please write down your codes so that I can test ? I think, what you said is about the iBarShift, but I don't know how to join into the merged loops. Thanks
  • #4
  • Mar 30, 2022 12:45am Mar 30, 2022 12:45am
dear my friend

I have an indicator on TradingView - can you convert into a MetaTrader?

this indicator " Mean Reversion Channel "- (fareid's MRI Variant) by fareidzulkifli "

thanks a lot
  • #5
  • Mar 30, 2022 6:46am Mar 30, 2022 6:46am
Quoting imanbtc
dear my friend I have an indicator on TradingView - can you convert into a MetaTrader? this indicator " Mean Reversion Channel "- (fareid's MRI Variant) by fareidzulkifli " thanks a lot
Hi imanbtc, if your post is asking me, LOL, sorry, I'm not a coder and I'm slowly picking up the coding knowledge by myself. You should look for other coders.
  • #6
  • Apr 1, 2022 11:10pm Apr 1, 2022 11:10pm
Quoting chimoong
Hi coders, Is it possible to get a loop of a loop or multiple loops that to get the number of count ? Let me give a scenario :- int cntBigBarTF1=0; for(int i=1; i<=100; i++) { double cOp0=iOpen(symbol,60,i), cCs0=iClose(symbol,60,i), cATR0=iATR(symbol,60,5,i); if(MathAbs(cOp0-cCs0)>cATR0) cntBigBarTF1++; } int cntBigBarTF2=0; for(int i=??; i<=??; i++) { double cOp0=iOpen(symbol,5,i), cCs0=iClose(symbol,5,i), cATR0=iATR(symbol,5,5,i); if(MathAbs(cOp0-cCs0)>cATR0) cntBigBarTF2++; } Firstly, for 100 bars, I want to get the count number of big bars...
There are many ways to handle this:
Below is just how to, not exact code.


Using just indexes:
First, in the first, you will get the index of 60min and multiply by 12, that would be the index of 5 min candle.
for ( x = 0; x = 100; x++)
{

if this is long candle that meets condition and do another loop

for ( y = x * 12; y < x * 12 ; y++)

{

check if this 5 min meets condition; update something or do something

}

}

or,
you can use timestamp of each 60 min candle and search that bar index in 5 min candle

for ( x = 0; x = 100; x++)
{

if this is long candle that meets conditon

datetime bartime = iTime(xxxxx);

use iBarshift to find

iBarShift - Timeseries and Indicators Access - MQL4 Reference


int shift=iBarShift(Symbol(),PERIOD_M5, bartime);

for ( y = shift; y > shift + 12 ; y-- )

{

do check if this candle meets codition

}


}

or,
use array to store indexes from first loop,
and use that in next loop


or, create function that you can call so you don't have to use same loop twice.
  • #7
  • Apr 3, 2022 4:12am Apr 3, 2022 4:12am
Quoting BlueRain
{quote} There are many ways to handle this: Below is just how to, not exact code. Using just indexes: First, in the first, you will get the index of 60min and multiply by 12, that would be the index of 5 min candle. for ( x = 0; x = 100; x++) { if this is long candle that meets condition and do another loop for ( y = x * 12; y < x * 12 ; y++) { check if this 5 min meets condition; update something or do something } } or, you can use timestamp of each 60 min candle and search that bar index in 5 min candle for ( x = 0; x = 100; x++) { if this is...
Hi BlueRain, thanks for your reply. You have provided 3 options, I prefer the 2nd one for use of iBarShift.

I tried to code as follows :-

Inserted Code
   int cntBigBarTF2=0; for(int i=1; i<=100; i++) {
   {
   double cOp0=iOpen(symbol,60,i), cCs0=iClose(symbol,60,i), cATR0=iATR(symbol,60,5,i),
   int Sf=iBarShift(symbol,5,iTime(symbol,60,i),true);
   if(MathAbs(cOp0-cCs0)>cATR0);
   }
 
   for(int cnt=Sf; cnt>=Sf-11; cnt--) {
   double cOp0=iOpen(symbol,5,i), cCs0=iClose(symbol,5,i), cATR0=iATR(symbol,5,5,i);
   if(MathAbs(cOp0-cCs0)>cATR0) cntBigBarTF2++;
   }
   }

but with 7 errors and 2 warnings, could you please help to modify my code till it is error-free ? Thanks
  • #8
  • Apr 4, 2022 2:35am Apr 4, 2022 2:35am
int cntBigBarTF2=0;

for(int i=1; i<=100; i++)
{

double cOp0=iOpen(Symbol(),60,i);
double cCs0=iClose(Symbol(),60,i);
double cATR0=iATR(Symbol(),60,5,i);

int Sf=iBarShift(Symbol(),5,iTime(Symbol(),60,i),true);

if(MathAbs(cOp0-cCs0)>cATR0)
{

for(int cnt=Sf; cnt>=Sf-11; cnt--)
{
double cOp0=iOpen(Symbol(),5,i), cCs0=iClose(Symbol(),5,i), cATR0=iATR(Symbol(),5,5,i);

if(MathAbs(cOp0-cCs0)>cATR0)
cntBigBarTF2++;
}
}
}

you might want to rename variables inside of 2nd loop as it might give you warning.

double cOp0=iOpen(Symbol(),5,i), cCs0=iClose(Symbol(),5,i), cATR0=iATR(Symbol(),5,5,i);

those names are identical with your first one..technically, it should be fine but depending on the how it compiles, it will give you warning.
  • #9
  • Last Post: Edited Apr 5, 2022 2:58am Apr 4, 2022 12:18pm | Edited Apr 5, 2022 2:58am
Quoting BlueRain
int cntBigBarTF2=0; for(int i=1; i<=100; i++) { double cOp0=iOpen(Symbol(),60,i); double cCs0=iClose(Symbol(),60,i); double cATR0=iATR(Symbol(),60,5,i); int Sf=iBarShift(Symbol(),5,iTime(Symbol(),60,i),true); if(MathAbs(cOp0-cCs0)>cATR0) { for(int cnt=Sf; cnt>=Sf-11; cnt--) { double cOp0=iOpen(Symbol(),5,i), cCs0=iClose(Symbol(),5,i), cATR0=iATR(Symbol(),5,5,i); if(MathAbs(cOp0-cCs0)>cATR0) cntBigBarTF2++; } } } you might want to rename variables inside of 2nd loop as it might give you warning. double cOp0=iOpen(Symbol(),5,i), cCs0=iClose(Symbol(),5,i),...
Hi BlueRain, I have coded according to your codes and tested, results / output were okay. Yes, I had renamed the 2nd loop's variables, warning-free.

Thank you so much.
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