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Coder question: Finding the right Buffer/value

  • #1
  • First Post: Edited 6:34pm Nov 26, 2013 4:13pm | Edited 6:34pm
I am trying to figure out how to call the buffers in the KorHarmonics indi.

I want to call only the One2One trigger but its quite a bit over my head how to do it.
I see there are 3 buffers in KorHarmonics which does not tell me much,
but I guess one of these will have to be called.

Inserted Code
SetIndexBuffer(0, g_ibuf_92);
SetIndexBuffer(1, g_ibuf_96);
SetIndexBuffer(2, g_ibuf_100);


Guess the code to be used in my EA, will be something like this.

Inserted Code
double One2one = iCustom(NULL, 0, "KorHarmonics", ?,?,0);

Any help and inputs is much appreciated.

Oddvin
  • #2
  • Nov 26, 2013 5:47pm Nov 26, 2013 5:47pm
I don't use source code for this. Rather I look at the values in the data window and pick the one I want. They are numbered top down from zero. Always works for me.
  • #3
  • Nov 26, 2013 5:49pm Nov 26, 2013 5:49pm
You are using an illegal decompiled file.
MT4/MT5 EAs/Indicators/Alerts coder
  • #4
  • Nov 26, 2013 6:31pm Nov 26, 2013 6:31pm
Quoting CodeMeister
I don't use source code for this. Rather I look at the values in the data window and pick the one I want. They are numbered top down from zero. Always works for me.

Thanks a lot.
I was able to detect the triggered pattern values.
They were in txt formats.
Inserted Code
HAR_S_found_pattern_34  (-One2One Bearish)

Would you mind giving a brief example of how to implement it?

Thanks
  • #5
  • Nov 26, 2013 6:33pm Nov 26, 2013 6:33pm
Quoting FerruFx
You are using an illegal decompiled file.
How do you know?

I don't recall exactly where I got it from, but it's my impression it's freely available all over the net.
However, I will remove the indi.

Thanks for your input.
  • #6
  • Nov 26, 2013 6:36pm Nov 26, 2013 6:36pm
Quoting enterfx
{quote} How do you know?
Just by looking at the code. This is obvious that it's not the original code.

BTW, you have even at the top of the code the header showing that's an illegal decompiled code
MT4/MT5 EAs/Indicators/Alerts coder
  • #7
  • Nov 26, 2013 7:13pm Nov 26, 2013 7:13pm
Quoting FerruFx
{quote} Just by looking at the code. This is obvious that it's not the original code. BTW, you have even at the top of the code the header showing that's an illegal decompiled code

I now recall where I found it. It was actually on the website of the developer.
http://tradingarsenal.com/korharmoni....html#post1791
  • #8
  • Nov 26, 2013 9:21pm Nov 26, 2013 9:21pm
g_ibuf_92

This is a decompiler assigned name. Usually variable names are more meaningful, such "Aud_CurrencyBuffer"
When a decompiler does its thing, it doesn't know the original variable name, "Aud_CurrencyBuffer", so it uses a different name when printing out the code, such as "g_ibuf_92" (I'm guessing g_ibuf means - global indicator buffer. The numbers could be anything)

An indicator may display up to 8 lines on the chart, numbered from 0-7.

SetIndexBuffer(0, g_ibuf_92);
SetIndexBuffer(1, g_ibuf_96);
SetIndexBuffer(2, g_ibuf_100);

There are three lines in this code.

To get the latest value of the first line, use
double One2one = iCustom(NULL, 0, "KorHarmonics", 0, 0);

The second line, use
double One2one = iCustom(NULL, 0, "KorHarmonics", 1, 0);

To get other values in the indicator line, you change the "shift" value in the iCustom command

double One2one = iCustom(NULL, 0, "KorHarmonics", 0, 0); // this gets the latest value
double One2one = iCustom(NULL, 0, "KorHarmonics", 0, 1); // this gets the second latest value
double One2one = iCustom(NULL, 0, "KorHarmonics", 0, 2); // this gets the third latest value
  • #9
  • Nov 27, 2013 12:25pm Nov 27, 2013 12:25pm
Quoting boomza
g_ibuf_92 This is a decompiler assigned name. Usually variable names are more meaningful, such "Aud_CurrencyBuffer" When a decompiler does its thing, it doesn't know the original variable name, "Aud_CurrencyBuffer", so it uses a different name when printing out the code, such as "g_ibuf_92" (I'm guessing g_ibuf means - global indicator buffer. The numbers could be anything) An indicator may display up to 8 lines on the chart, numbered from 0-7. SetIndexBuffer(0, g_ibuf_92); SetIndexBuffer(1, g_ibuf_96); SetIndexBuffer(2, g_ibuf_100); There are three...

Thanks a lot for your reply and help.

I am struggling to call the right output. I've tried all kinds of variables. I wonder if the indi is to complex to run on a backtest.

If you have any idea how to write the line I'd appreciate any feedback.

Thanks.
  • #10
  • Nov 27, 2013 1:40pm Nov 27, 2013 1:40pm
double value0 = iCustom(Symbol(),TIMEFRAME,"INDICATORNAME",external parameter1,external parameter2,...,BUFFER0,CandleShift);
double value1 = iCustom(Symbol(),TIMEFRAME,"INDICATORNAME",external parameter1,external parameter2,...,BUFFER1,CandleShift);
double value2 = iCustom(Symbol(),TIMEFRAME,"INDICATORNAME",external parameter1,external parameter2,...,BUFFER2,CandleShift);

And if you want to see what the buffers hold, print them or insert a comment-call:
Comment("buffer0: "+value0+", buffer1: "+value1+", buffer2: "+value2);

...
PM me with coding requests and I'll probably put you on my ignore list
  • #11
  • Edited Jun 22, 2018 11:28pm Nov 27, 2013 8:07pm | Edited Jun 22, 2018 11:28pm
Quoting fxdaytrader_
double value0 = iCustom(Symbol(),TIMEFRAME,"INDICATORNAME",external parameter1,external parameter2,...,BUFFER0,CandleShift); double value1 = iCustom(Symbol(),TIMEFRAME,"INDICATORNAME",external parameter1,external parameter2,...,BUFFER1,CandleShift); double value2 = iCustom(Symbol(),TIMEFRAME,"INDICATORNAME",external parameter1,external parameter2,...,BUFFER2,CandleShift); And if you want to see what the buffers hold, print them or insert a comment-call: Comment("buffer0: "+value0+", buffer1: "+value1+", buffer2: "+value2); ...

Hi guys, thanks for all your kind inputs and suggestions. I appreciate it a lot.

However, I've played around with the buffers quite a lot and also printed their values to the comments like you suggested, but still no results.
If you know KorHarmonics indi, it has an awful lot of external parameters, so I don't know.

Maybe I should try to detect chart objects instead? If someone could shed some more light here, I would be most thankful

M5 chart and the indi are attached to get an idea of my task.


Attached Image (click to enlarge)
Click to Enlarge Name: usdjpym5.png Size: 94 KB


{ copyrighted attachment deleted by staff }
  • #12
  • Nov 28, 2013 12:02pm Nov 28, 2013 12:02pm
by the way, some time ago I saw another (I think) harmonics-indicator version.

And there was, if I remember right, no buffer set in case of long/short signals.

In short terms: I think you'll have to scan the comment-string and to search if there do the terms "Bullish" or "Bearish" (or both) exist. With this information filtered you could set some buffers to read out the indicator values, or write a file which could be read by the ea, etc. pp.
PM me with coding requests and I'll probably put you on my ignore list
  • #13
  • Dec 3, 2013 7:30am Dec 3, 2013 7:30am
Quoting fxdaytrader_
by the way, some time ago I saw another (I think) harmonics-indicator version. And there was, if I remember right, no buffer set in case of long/short signals. In short terms: I think you'll have to scan the comment-string and to search if there do the terms "Bullish" or "Bearish" (or both) exist. With this information filtered you could set some buffers to read out the indicator values, or write a file which could be read by the ea, etc. pp.

I hired a coder over at mql forum and he said that we had to detect the pattern by graphic objects. The buffers had no valuable outputs as far as I know. Thanks anyway.

PS: replied to your PM.
  • #14
  • Last Post: Dec 3, 2013 7:43am Dec 3, 2013 7:43am
yes, I played (just for interest) with another version of that indicator.

You may (i.a.) change the function with sends the alert( and sendmail(

just as hint how it could be done (the name could be signalbuffer, but before I was playing with 2 buffers:

Inserted Code
   string signal="none";
   if (StringFind(msg,"Bullish",0)!=-1 && StringFind(msg,"invalidated",0)==-1) signal="LONG";
   if (StringFind(msg,"Bearish",0)!=-1 && StringFind(msg,"invalidated",0)==-1) signal="SHORT";
   if (StringFind(msg,"Bullish",0)!=-1 && StringFind(msg, "Bearish", 0)!=-1 && StringFind(msg,"invalidated",0)==-1) signal="LONG/SHORT";
   
    SignalBufferBuy[0]=EMPTY_VALUE;
    
    if (signal=="LONG")  SignalBufferBuy[0]=3.0; 
    if (signal=="SHORT") SignalBufferBuy[0]=2.0;
    if (signal=="LONG/SHORT")   SignalBufferBuy[0]=1.0;
    }
Then you know what the current signal(s) are - and may set a buffer (you have to implement it) which can be read by your ea (via icustom), if the buffer is 3.0 the ea knows that he has to send a buy order, if 2.0 sell order, if 1.0 one buy and one sell order (because we've found a bearish and bullish pattern at the same time).

That does work, but I did not stuck to it ...

Just for interest: You wrote you "hired a coder" - how much did you pay him for that?
PM me with coding requests and I'll probably put you on my ignore list
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