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Custom con/di-vergence ... looking for programmer

  • #1
  • First Post: May 13, 2007 6:45am May 13, 2007 6:45am
I would like to create a indicator similar to MACD, but one that would be using DEMA instead of EMA for the C/D.
Anybody would like to help me with this?.. I can provide a DEMA indicator script, but I keep failing in mixing it with the MACD script. So I need a help.

Elmer
  • #2
  • May 13, 2007 1:02pm May 13, 2007 1:02pm
  •  iya
  • | Joined Oct 2006 | Status: always protect yourself | 129 Posts
Can you post the DEMA? Never heard of it, but I don't think that matters when turning it into an MACD.
  • #3
  • May 13, 2007 8:41pm May 13, 2007 8:41pm
Quoting iya
Can you post the DEMA? Never heard of it, but I don't think that matters when turning it into an MACD.
I am sure that it does not matter when turning it in ti divergence indicator, just I am missing something in the code.

DEMA = 2 * EMA - EMA of EMA

Would you like to write the code? (Or anybody else?) I would then contact you by PM. Evrything that we put together will be posted on FF, but I dont want to start a thread full of "Oh nice" posts. I have a system in my mind, but it is too complicated to read because I dont have the right form of indicators right now, so this is my first step into making it more clear and definable. Then it will end all here.

elmer
  • #4
  • May 14, 2007 5:43am May 14, 2007 5:43am
  •  iya
  • | Joined Oct 2006 | Status: always protect yourself | 129 Posts
Sounds interesting. Feel free to contact me, if you need more help.
But here's the MACD of two DEMAs, already

http://img206.imageshack.us/img206/5...dofdemakd3.gif
Attached File(s)
File Type: mq4 DEMA_MACD.mq4   2 KB | 1,189 downloads
  • #5
  • Edited 10:21pm May 14, 2007 11:17am | Edited 10:21pm
Quoting iya
Sounds interesting. Feel free to contact me, if you need more help.
But here's the MACD of two DEMAs, already
perrfect, I got to try it tomorrow, but looks good and I love your code, .. just nice and tidy.

need some sleep now.. but THANKS.

elmer

edit.. ok here are my thoughts.... the indicator works fine, it keeps the speed od Dema, which is faster than Ema. My idea is to use it as a warning/signal support. When you look in the VyNNer system thread some people were considering using DEMA and some may be still using it. http://www.forexfactory.com/showthread.php?t=19867

So here is my second idea: How about combining three DEMAs in the indicator. Actually i think it is easier to program this one to look like oscilator with lines than as histogram.
There will be two quicker and one slower DEMAs. The slower will define the zero level of the indicator.
The quicker will form lines around zero. The distance from the zero of these lines will be defined as the distance of the quickDEMAs form the slow DEMA. So we will see, when the two quick DEMAs cross, how far they are from each other and how far they are from the main "trend defying" slow DEMA.

It would definitely be nice not to make just two lines out of the quick DEMAs, but also fill the space between these two lines with histogram-bars. (not sure how to do this, the not nice way might be to draw the higher bar and then the shorter,making it thicker and in the color of the background??)
Then in next step we might think about changing the colors of the bars prior to the cross, just as the MACD used in Phill Nell 4hour system is doing...Also, having the option of selecting between EMA and DEMA for all three numbers feels to me as a useful feature.
But I dont want to waste too much of your time. It would be great if you find this interesting and take the effort.
Thank you.

elmer
  • #6
  • May 15, 2007 5:28am May 15, 2007 5:28am
Quoting elmer
perrfect, I got to try it tomorrow, but looks good and I love your code, .. just nice and tidy.

need some sleep now.. but THANKS.

elmer

edit.. ok here are my thoughts.... the indicator works fine, it keeps the speed od Dema, which is faster than Ema. My idea is to use it as a warning/signal support. When you look in the VyNNer system thread some people were considering using DEMA and some may be still using it. http://www.forexfactory.com/showthread.php?t=19867

So here is my second idea: How about combining three DEMAs in the indicator. Actually i think it is easier to program this one to look like oscilator with lines than as histogram.
There will be two quicker and one slower DEMAs. The slower will define the zero level of the indicator.
The quicker will form lines around zero. The distance from the zero of these lines will be defined as the distance of the quickDEMAs form the slow DEMA. So we will see, when the two quick DEMAs cross, how far they are from each other and how far they are from the main "trend defying" slow DEMA.

It would definitely be nice not to make just two lines out of the quick DEMAs, but also fill the space between these two lines with histogram-bars. (not sure how to do this, the not nice way might be to draw the higher bar and then the shorter,making it thicker and in the color of the background??)
Then in next step we might think about changing the colors of the bars prior to the cross, just as the MACD used in Phill Nell 4hour system is doing...Also, having the option of selecting between EMA and DEMA for all three numbers feels to me as a useful feature.
But I dont want to waste too much of your time. It would be great if you find this interesting and take the effort.
Thank you.

elmer

Hi Elmer, I will test the indicator and try to digest the idea and post. Thanks.
  • #7
  • May 15, 2007 6:09am May 15, 2007 6:09am
Quoting iya
Sounds interesting. Feel free to contact me, if you need more help.
But here's the MACD of two DEMAs, already
Hello Iya,
here is my try , I used your code and added another fast Dema, but I definitely miss something, so can you have a look?..
elmer
Attached File(s)
File Type: mq4 _not _working_3DEMA_MACD.mq4   3 KB | 658 downloads
  • #8
  • May 15, 2007 8:00am May 15, 2007 8:00am
Hello Chaps, I can't get the EA to a chart, all my other EAs do, any ideas?
TTFN Merlyn
  • #9
  • May 15, 2007 9:13am May 15, 2007 9:13am
Quoting Merlyn
Hello Chaps, I can't get the EA to a chart, all my other EAs do, any ideas?
Hi ya druid:-)

its not EA, its an indicator, put it into experts/indicators, restart MT4 or compile it and it should be there, it runs for me well

elmer
  • #10
  • May 15, 2007 10:23am May 15, 2007 10:23am
  •  iya
  • | Joined Oct 2006 | Status: always protect yourself | 129 Posts
Quoting elmer
Hello Iya,
here is my try , I used your code and added another fast Dema, but I definitely miss something, so can you have a look?..
elmer
First thing is that we can only use 8 Index Buffers max. So we either calculate the DEMAs on the fly or use some other arrays. I'll try to fix it.
  • #11
  • May 15, 2007 10:41am May 15, 2007 10:41am
Quoting iya
First thing is that we can only use 8 Index Buffers max. So we either calculate the DEMAs on the fly or use some other arrays. I'll try to fix it.
i see... my problem is that I can read the logic, but I dont know the syntax of the language:-) Thank you. Some people are starting to play with the first version of the indicator, I am trying it together with the colored MACD form Phill Nell strategy. Looks like it might be of use:-)

elmer
  • #12
  • May 15, 2007 10:49am May 15, 2007 10:49am
  •  iya
  • | Joined Oct 2006 | Status: always protect yourself | 129 Posts
Here's a quick version; without signal lines, we get away with 8 buffers, but for multiple colored bars we need sth else.

http://img522.imageshack.us/img522/1449/3demacz1.gif
Attached File(s)
File Type: mq4 3DEMA_MACD.mq4   2 KB | 932 downloads
  • #13
  • Edited 12:29pm May 15, 2007 11:02am | Edited 12:29pm
Quoting iya
Here's a quick version; without signal lines, we get away with 8 buffers, but for multiple colored bars we need sth else.
now you are quick man... Give me a minute to taste it..:-)
.
.
.

nice and clean code again:-)

I think this might prove to be useful for some of the people from VyNNer 4H swing thread. It can be used for re-entrys in trend and also it can be turned into simple EA:-) Three DEMAs... :-)

Also I have tried the first version of the DEMA-MACD with Phill Nells 4H strategy and I think it combines well with the more classic MACD used there. To my eyes it can almost predict what the MACD will do in short time. So I think that puting colored bars on the first DEMA-MACD would be now more effective.
You can find the MACD with colored bars and trading signals in this post... it is somewhat complex, so I dont know how difficult it would be to merge these two codes...
http://www.forexfactory.com/showpost...9&postcount=57

elmer
Attached Image (click to enlarge)
Click to Enlarge Name: eurusd_16_5.jpg Size: 79 KB
  • #14
  • May 16, 2007 2:12pm May 16, 2007 2:12pm
  •  iya
  • | Joined Oct 2006 | Status: always protect yourself | 129 Posts
First of all I made a standalone DEMA indicator, that all derivative indicators can simply call. The only downside is a little less portability, for these "secondary" indicators.

Then modifying the original MACD_Colored was simple: I just added an option to use DEMAs. Most of the features work fine with DEMAs, except the 'pips until color change'.

Last but not least, the 3 DEMA MACD now has a colored inside, but the ugly way of using background colored bars is the only way, I think. You actually need to adjust the color yourself, since I couldn't find a function to access the chart background color.
The more conventional way would probably have been to use two seperate MACDs set to the three different periods.

http://img501.imageshack.us/img501/1...cd3demanh9.gif
Attached File(s)
File Type: mq4 DEMA.mq4   2 KB | 1,094 downloads
File Type: mq4 MACD_3_DEMA.mq4   3 KB | 1,034 downloads
File Type: mq4 MACD_Colored_DEMA_v104.mq4   16 KB | 1,075 downloads
  • #15
  • May 16, 2007 2:44pm May 16, 2007 2:44pm
Quoting iya
First of all I made a standalone DEMA indicator, that all derivative indicators can simply call. The only downside is a little less portability, for these "secondary" indicators.

Then modifying the original MACD_Colored was simple: I just added an option to use DEMAs. Most of the features work fine with DEMAs, except the 'pips until color change'.

Last but not least, the 3 DEMA MACD now has a colored inside, but the ugly way of using background colored bars is the only way, I think. You actually need to adjust the color yourself, since I couldn't find a function to access the chart background color.
The more conventional way would probably have been to use two seperate MACDs set to the three different periods.

http://img501.imageshack.us/img501/1...cd3demanh9.gif

Thanks Iya, elmer. Hope this will be a great indicator.
  • #16
  • May 16, 2007 9:44pm May 16, 2007 9:44pm
Quoting iya
First of all I made a standalone DEMA indicator, that all derivative indicators can simply call. The only downside is a little less portability, for these "secondary" indicators.

Then modifying the original MACD_Colored was simple: I just added an option to use DEMAs. Most of the features work fine with DEMAs, except the 'pips until color change'.

Last but not least, the 3 DEMA MACD now has a colored inside, but the ugly way of using background colored bars is the only way, I think. You actually need to adjust the color yourself, since I couldn't find a function to access the chart background color.
The more conventional way would probably have been to use two seperate MACDs set to the three different periods.
Iya!
Very nicely done, thank you.

By making that simple DEMA indicator, you filled a gap in MT4 arzenal:-)

Adding the DEMA option to the MACD_Colored 104 is just one of those simple and bright ideas that really help.

I have only some minor comments.
Can you please rename your version of the MACD_Colored_104 to ver.105?(and edit the uploaded file) Now it might confuze people. You added a significant function, so it should be a new filename :-)
I think we can let somebody from the Phill Nells thread to deal with the "pips to color change" The authors of that algorythm are there.

My second comment is about the MACD 3DEMA. Right now it looks good but the bars dont bring any new information. Do you think it might be possible to make the bars change color, when the two fastDema lines start approaching each other? It would signalize that the cross might be about to end.
I am not sure if comparing just one last and the new visible bar wouldnt result in too many color changes... how about comparing average value of last two visiblebars and the new visiblebar.

I dont know what style you are using for your trading, but with what you have done here you might be interested in this thread http://www.forexfactory.com/showthread.php?t=14630
When you look on my chart you will see how the standart MACD Colored is supported by the corelation of the DEMA MACDColored.
I wouldnt say that it provides full-power signals, but it shows warnings and sometimes can provide entrys one bar earlier and in the right direction.
DEMA alone is faster than EMA of the same period, and this is the same with the DEMA_MACD, although it is a bit more nervous:-)

Let me know what you think.

elmer
Attached Image (click to enlarge)
Click to Enlarge Name: eurusd_16_5a.jpg Size: 80 KB
  • #17
  • Edited 11:39am May 17, 2007 10:09am | Edited 11:39am
here are the compiled files of the scripts form posr Nr14.
Remember, you need the basic DEMA in your Indicators folder to run the complex ones.

elmer
Attached File(s)
File Type: ex4 MACD_3_DEMA.ex4   4 KB | 787 downloads
File Type: ex4 DEMA.ex4   2 KB | 767 downloads
File Type: ex4 MACD_Colored_DEMA_v104.ex4   21 KB | 789 downloads
  • #18
  • Edited 7:03pm May 17, 2007 6:03pm | Edited 7:03pm
  •  iya
  • | Joined Oct 2006 | Status: always protect yourself | 129 Posts
Quoting elmer
Do you think it might be possible to make the bars change color, when the two fastDema lines start approaching each other? It would signalize that the cross might be about to end.
Yeah, that makes sense. I made the colors coincide with the normal MACD set to the same period. So, get your two MACDs for the price of one, now!

Of course I know Phils thread and actually made a simple EA early in the beginning. It's profitable but I didn't bother to post it because it lacks all the nuances of the strategy and has a very low frequency (300 trades in 6 years).

http://img522.imageshack.us/img522/4...cd3demawk7.gif
http://img91.imageshack.us/img91/3397/macd3demakb0.gif

The DEMA.mq4 is the same as in my prev. post, it's still required for the two other indicators. The MACD_Colored_v105.mq4 was just renamed.
Attached File(s)
File Type: mq4 DEMA.mq4   2 KB | 1,202 downloads
File Type: mq4 MACD_Colored_v105.mq4   16 KB | 1,288 downloads
File Type: mq4 MACD_3_DEMA_v101.mq4   4 KB | 1,438 downloads
  • #19
  • Edited 9:00pm May 17, 2007 8:27pm | Edited 9:00pm
Quoting iya
Yeah, that makes sense. I made the colors coincide with the normal MACD set to the same period. So, get your two MACDs for the price of one, now!

Of course I know Phils thread and actually made a simple EA early in the beginning. It's profitable but I didn't bother to post it because it lacks all the nuances of the strategy and has a very low frequency (300 trades in 6 years).

The DEMA.mq4 is the same as in my prev. post, it's still required for the two other indicators. The MACD_Colored_v105.mq4 was just renamed.
Ill need some time to digest this last one.. It even looks nice graphically... :-) You amaze me...

ok. .. so if Im getting it right... its basically the same as before. green/orange is a histogram of combined two lines, whichever is closer to base, blue/red shows the overhead of that. Thats really interesting. It is two MACDs, but it is also difference of two MACDs...This needs to be observed on some charts, to get some feel of it.

If you have an EA that is so rigorous about the selection of trades, and it gives one trade per week roughly.. then we have like 8 usable pairs.. you might end with one trade per day, that woudlnt be so bad:-)

elmer
  • #20
  • May 25, 2007 4:07pm May 25, 2007 4:07pm
wow , i'm amazed... what a beautiful looking and great indicator... the macd of 3 demas... it seems to be a successful trend-following/oscillating indicator
in a way that the normal macd could only dream of being....

this is excellent stuff guys... god bless... thanks.
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