Discussion of article "The Implementation of a Multi-currency Mode in MetaTrader 5"

[MetaQuotes]

New article The Implementation of a Multi-currency Mode in MetaTrader 5 is published:

For a long time multi-currency analysis and multi-currency trading has been of interest to people. The opportunity to implement a full fledged multi-currency regime became possible only with the public release of MetaTrader 5 and the MQL5 programming language. In this article we propose a way to analyze and process all incoming ticks for several symbols. As an illustration, let's consider a multi-currency RSI indicator of the USDx dollar index.

Author: Константин

[Andrey Khatimlianskii]

Konstantin, thank you for the article!

The problem voiced is not far-fetched, and the solution is elegant and (hopefully) reliable.

Question: does the method of calling "spies" directly from the Expert Advisor in the tester work?

[Konstantin Gruzdev]

komposter:

Konstantin, thank you for the article!

The problem voiced is not far-fetched, and the solution is elegant and (hopefully) reliable.

Question: does the technique with calling "spies" directly from the Expert Advisor work in the tester?

OnChartEvent() doesn't work in the tester yet. The developers promised to make it work. I tested, if it can be called a test, the technique with calling "spies" directly from the Expert Advisor in the tester, replacing the passing of events through global variables - it works.

[lav888]

Great decision! Lots of reasons to "think about it".....

I've been swirling around this for quite some time and you literally put it all into perspective. Thank you!

If the main mass of calculations on the symbol is performed in the indicator body, and the Expert Advisor sends the results for final processing and trading, it will be a very good distribution of the load. After all, each indicator and Expert Advisor will work in its own thread. I will have to try it...

[lav888]

Couldn't resist from flooding.....

I reread the article again. Even those small questions that arose at first have disappeared.

Thank you, Konstantin.

[Konstantin Gruzdev]

lav888:

Great solution! Lots of reasons to "think"...

I was thinking about it for quite a long time, and you literally put everything in its place. Thank you!

If you make the bulk of calculations on a symbol in the indicator body, and send the results to the Expert Advisor for final processing and trading, you will get a very good distribution of the load. After all, each indicator and Expert Advisor will work in its own thread. I'll have to try it...

I couldn't resist flooding...

I reread the article again. Even those small questions that arose at first have disappeared.

Thank you, Konstantin.

You're welcome. And thank you for evaluating the idea. Yes, indicators, in some cases, can be given a lot of credit, up to sending only a buy/sell signal or setting orders to the Expert Advisor.

[Yedelkin]

Where is the option to vote for the article?

Yes, and I can't help but express my appreciation to MQ for such a tool!

[Trolls]

Tell me how to run this in the Expert Advisor, I get this message. When trying to run the attached Expert Advisor to the article

2011.01.22 23:51:02 Core 1 connect closed

2011.01.22 23:51:02 Core 1 tester stopped because OnInit failed

2011.01.22 23:51:02 Core 1 2010 .01.01.01 00:00:00 Error installing spy on GBPUSD

2011.01.01.22 23:51:02 Core 1 2010 .01.01.01 00:00:00 Expert removed because indicator 43 cannot load [4802]

2011.01.01.22 23:51:02 Core 1 loading of iSpy GBPUSD,M1 failed

2011.01.22 23:51:02 Core 1 GBPUSD ,M1: testing of Experts\My\exSpy.ex5 from 2010.01.01 00:00 to 2011.01.22 00:00 started

2011.01.01.22 23:51:02 Core 1 GBPUSD ,M1 (MetaQuotes-Demo): every tick generating

2011.01.01.22 23:51:02 Core 1 Intel Atom N450 @ 1.66GHz, 2038 MB, PR22

2011.01.01.22 23:51:02 Core 1 4649 bytes of total initialisation data received

2011.01.22 23:51:02 Core 1 successfully initialised

[Trolls]

1. How to get this up and running when testing history.

2. How to get not price, but ask and bid through spies ?

Thanks in advance

[Ruslan Khasanov]

Trolls:

1. How to get this up and running when testing history.

2. How to get not price, but ask and bid through spies ?

Thanks in advance

OnChartEvent does not work in the tester

[Konstantin Gruzdev]

Trolls:

2. How to get not price, but ask and bid through spies ?

Thanks in advance

There is a line in the OnCalculate() function in the Spy Control panel MCM:

double price_current=price[rates_total-1];

By default price[rates_total-1] is equal to the close price of the last unfinished bar, which in turn is equal to the last bid price. i.e. we always get bid price from the spy by default.

If you want to forcibly get the ask price, replace this line, for example, with the following one

double price_current=SymbolInfoDouble(_Symbol,SYMBOL_ASK); 

Tell me how to run it in the Expert Advisor. I get this message. When trying to run the attached Expert Advisor to the article

OnChartEvent does not work in the tester - that's for now. But the fact that the Expert Advisor in the tester can't load the spy is strange. Is everything working in your demo?

Let me see what I have....