Excellent training materials! Your lessons have been a big help!

Thanks Code Guru!

thank very much for ur MQL4' lessen!

Hi Guru,

Amazing course...thank you so much for your generosity.

What stifles me is the basic concept of what happens when an indicator or EA runs....what happens first...does it run for each bar...and does it rerun for each new finished bar ?

Also, how does one do 'tick at a time' data checks when using daily or hourly close/high/low prices ? (hope this makes sense).

Thanks again

Johns

codersguru or other MT gurus, need some help with moving crossover sample EA from lesson 14 part 2

hi, I am confused about the EA how it closes open orders.

your code goes something like this:

for (cnt=0; cnt<total; cnt++) {
OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
...
OrderClose(...);
...
}

please explain why it is safe to use such code? out of habit I normally code these things like:

for (int i=total-1;i>=0;i--) {
OrderSelect(i,...);
...
OrderClose(...);
...
}

but I am new to writing EAs so please explain why your code is correct. I mean, what am I missing? Thanks.

also, ps.. I think there is a typo in your part-2-lesson14.pdf... it says "sort EMA", should be "short EMA". I think it was in that pdf that I read this error.

Codersguru,

Can you please have a look at my EA and tell or help me fix this problem. It places to much orders at a time. I think the looping is wrong but where? If added the orderscnt()<MaxTrades code but does not seem to work. Your experience will see the mistake is seconds. i want the EA to place only the requested amount of orders in a selected time. Currently the EA place trades as long as the code is true with in a spesific time.

Thank you very much,
Roets

Attached Files

ECAL v2TT.mq4 (6.5 KB, 72 views)

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It's been said before, but I just stumbled across this thread after looking for a decent tutorial in writing this most "potentially profitable" of codes. Your work is fantastic, and we are grateful for your efforts!!!

Codersguru,

I'd just like to say thank you so much for this tutorial. It is clear and concise.

I also love your writing style! I can tell english is not your first language, but you are so very precise with your words that your grammar is different, not wrong.

finished all ur lessons in 2 days & already finished my first EA.

good job!

I just ran into this and want to add my thanks to the chorus! Hope to have a chance to read part of this tonight. Much thanks to you!!!!!

In the above, section "The increment expression", you say "you can use only one test expression" but you have

for (i=0,j=0;i<15,i<;i++,j++)

Isn't "i<" a second test expression? What does it mean anyway, or is it simply a typo error?

thanks

JRtrader