Triangular moving average (TMA) ... - page 4
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Most probably you are forgetting the first parameter (I see that you removed the indicator you are using, but in that one you have one extra parameter as the first parameter) Here us how the call should look like (a very simple test EA that withdraws correct values of centered TMA line - use the TMACentered indicator from post #3 for testing, abd set the half length values to same values)
Yeah, I'm sorry! I thought that this is Your indie and You know it very well. It was TimeFrame as first parameter and before posting here I tried combining iCustom(Symbol(), 0, "TMA", 15 ... ) and iCustom(Symbol(), PERIOD_M15, "TMA", "", ... ) and so on. Although, I am not sure I had tried Your version iCustom(NULL, PERIOD_M15, "TMA", "", ...). Could it be just in using "NULL" instead of "Symbol()"?
...
That version of the indicator you first posted is also mine, so I do know how it works
Read my previous post for explanation
Yeah, I'm sorry! I thought that this is Your indie and You know it very well. It was TimeFrame as first parameter and before posting here I tried combining iCustom(Symbol(), 0, "TMA", 15 ... ) and iCustom(Symbol(), PERIOD_M15, "TMA", "", ... ) and so on. Although, I am not sure I had tried Your version iCustom(NULL, PERIOD_M15, "TMA", "", ...). Could it be just in using "NULL" instead of "Symbol()"?
That version of the indicator you first posted is also mine, so I do know how it works
Yes, Mladen, it's a kind of pre-moderation, that's why I have missed Your previous post. Thanks for Your time, wish I knew it before ))
BTW, have I said "Thanks, Mladen, for such a great stuff?"
If you did not specify the "" after the "TMA" in a parameters of iCustom() call, it was not working as it should
Why these things happen? Could You pass me a link to a thread with discussions on MTF indicators? It would be great!
Thanks again && have a good luck!
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It is all about passing parameters.
An example : you indicator has parameters p1,p2, and p3. Yopu can call it in the following forms
// p1,p2 and p3 will have default values
//
double value1 = iCustom(NULL,0,"Your indicator",0,0);
//
// p2 and p3 will have default values
//
double value2 = iCustom(NULL,0,"Your indicator",p1,0,0);
//
// p3 will have default values
//
double value3 = iCustom(NULL,0,"Your indicator",p1,p2,0,0);
//
// no default values
//
double value4 = iCustom(NULL,0,"Your indicator",p1,p2,p3,0,0);
[/PHP]
But you can not do, for example, this :
[PHP]double value2 = iCustom(NULL,0,"Your indicator",p2,0,0);Since then p1 will receive value of p2 and that will cause unpredictable behavior
So, all you have to do is to take care that you do not omit any of the parameters from the beginning of the parameters list and everything will be OK.
Yes, Mladen, it's a kind of pre-moderation, that's why I have missed Your previous post. Thanks for Your time, wish I knew it before ))
BTW, have I said "Thanks, Mladen, for such a great stuff?"
Why these things happen?Could You pass me a link to a thread with discussions on MTF indicators? It would be great!
Thanks again && have a good luck!It is all about passing parameters.
...............
So, all you have to do is to take care that you do not omit any of the parameters from the beginning of the parameters list and everything will be OK.Hi again! I bet You missed me! :lol:
Thanks for explanation. It does have some reason, unfortunately I know that but something is still missed. I made some changes in EA. Now it is running in real-time on a graph and the same EA is being back-tested. In back test values are different from the graph painted, while real-time values returned into the EA are the same as the indicator on the graph. It's confusing!
"Ooops, I did it again."
...
Judging from the code you were posting, just a wild guess : you can not back-test multi time frame indicators and EAs the same way as the regular ones. In multi time frame mode metatrader is taking real data of the target time frame, not the simulated data. Take a look at this thread : https://www.mql5.com/en/forum/general and I am sure you will find a lot of answer as of how to back-test and what to expect during back-test
Hi again! I bet You missed me! :lol:
Thanks for explanation. It does have some reason, unfortunately I know that but something is still missed. I made some changes in EA. Now it is running in real-time on a graph and the same EA is being back-tested. In back test values are different from the graph painted, while real-time values returned into the EA are the same as the indicator on the graph. It's confusing!
"Ooops, I did it again."Judging from the code you were posting, just a wild guess : you can not back-test multi time frame indicators and EAs the same way as the regular ones. In multi time frame mode metatrader is taking real data of the target time frame, not the simulated data. Take a look at this thread : https://www.mql5.com/en/forum/general and I am sure you will find a lot of answer as of how to back-test and what to expect during back-test
OK, thanks! So, let me guess, mtf indicators use "future" values, don't they? Then let us use IsTesting() and not letting the indicator use "future" data at all! Of course, we cannot artificially cut off the quotes stream of the testing engine, but probably we could prohibit the indie itself from using them. Earlier in this thread You mentioned that TMA is the same as LWMA, then we could use LWMA when IsTesting() == true. It could be a reason to add some functionality to the EA for testing. Any suggestions?
Thanks
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You mean we should "tweak" a little bit how metatrader works
Good luck with it
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PS: I told that "non repainting (end pointed) centered TMA is equal to LWMA" I never told that TMA (triangular moving average) is the same as LWMA (linear weighted moving average). TMA and LWMA are two different indicators
OK, thanks! So, let me guess, mtf indicators use "future" values, don't they? Then let us use IsTesting() and not letting the indicator use "future" data at all! Of course, we cannot artificially cut off the quotes stream of the testing engine, but probably we could prohibit the indie itself from using them. Earlier in this thread You mentioned that TMA is the same as LWMA, then we could use LWMA when IsTesting() == true. It could be a reason to add some functionality to the EA for testing. Any suggestions? Thanks
You mean we should "tweak" a little bit how metatrader works
Good luck with it
Well, I will go further "looking for the sun".
I apologize, English is not my best performance.
Anyway, I'm gonna build my EA using TMA. The only bad thing is that the testing will be performed on a demo (or some cent) account.
Again thanks and have a good luck!
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iMAG
If you want to save some time and nerves, do not make an EA based on any recalculating indicator. You will find out that making an EA based on those (so it must be used in "signaling mode") will just lead you to a "mission impossible" and an EA that will not be profitable. As I told many times, recalculating indicators can be used for estimation (human discretional estimation) but in "signaling mode" they are very dangerous
Well, I will go further "looking for the sun".
I apologize, English is not my best performance.
Anyway, I'm gonna build my EA using TMA. The only bad thing is that the testing will be performed on a demo (or some cent) account.
Again thanks and have a good luck!