image PS: Latest version might contain a bug: I have sporadic crashes since I removed cmem from the uses clause. Might have to add it back.

MQL4 -> R-Project - Interface Library

How can you query your huge monster CSV files faster than a DB server could do it with its highly optimized storage and query engine?

best SQL schema for tick data

Bump & new version. I updated the files in posting #1, please ignore posting #2, it is outdated but I cannot delete or update it anymore * renamed and changed some API functions for more consistency * header file will now check for correct DLL ...

MQL4 -> R-Project - Interface Library

Maybe smaller is better. MySQL will run on "consumer grade" hardware and is said to be amongst the fastest known databases when it comes to read only queries. I would not install something of the caliber of Oracle or a comparably huge monster ...

best SQL schema for tick data

It hovered around 45% long when NY opened and then it went to 47% right after the sudden drop. (47% traders are long, 53% are short). I started reading these numbers from the FF website here once or twice a day (manually) and plotting them into the ...

EURUSD

No, its only a small number of programmers who have not yet realized that on modern and complex operating systems there must exist certain conventions of what belongs where and that these old conventions are now being enforced by the OS (and rightly ...

windows 7 compiling problem

No, I hate this company from the bottom of my heart. But I have to admit that certain things are now finally done the correct way and this is one of them. No, this is a bug. The default setting of the installer is wrong for an application that ...

windows 7 compiling problem

It has a magic number. It is auto-generated and visible in the top left info block behind the word "snow". There is no user interaction needed, it just works, no room for human errors.

Trading the anti-grid with the snowball EA

While there might be some truth in this statement (regarding many other things that happen in and with windows) this particular issue is not a windows problem. Windows behaves absolutely correct here and MT4 is completely wrong. There cannot be any ...

windows 7 compiling problem

Forexfactory trader sentiment is on the brink of turning bullish. It went up 2% in the last few hours alone. The moment it is above 50% eurusd will drop like a stone.

EURUSD

A solution that only hides the symptoms while leaving the problem unchanged and even introduces new problems can never be a solution, especially not if an easy and proper solution to the problem is available. Running something as admin is almost ...

windows 7 compiling problem

This is not a solution! Don't give such fundamentally wrong recommendations! Installing it in another directory is a solution and solves the problem.

windows 7 compiling problem

install MT4 into another folder. Don't install it in "c:/program files", make a new folder somewhere else and install MT4 there and all problems will go away. "c:/program files" is read only and MT4 tries to write in this folder which is not allowed ...

windows 7 compiling problem

new version: added RAssignMatrix() added RAssignFactor() and a few other things.

MQL4 -> R-Project - Interface Library

This is not easy. The closest you can come to this - without having to do some really ugly hacks with no guarantee that it might even be possible - is either: (doable with plain mql4) * text objects instead of graphical icons * clicking cannot be ...

ISO interactive buy/sell/close icon on graph

There is a confusing conflict in terminology. They are not really variables in the usual sense (declared in the code), these other "global variables" are name-value pairs that can be accessed through a special API, they are accessible by all EAs in ...

EA Running

LOL! The nedgers now started running brokerages? This is the end of retail forex as we know it. Do yourself a favor and never open an account with them.

Getting out of a hedge question

its not an MT4 error, its an RTFM failure! — Do you know how to open the documentation and how to quickly view the function signature while editing your code? click into the word "iMA" so that the blinking caret is somewhere in this word and ...

MT4 error?

You dont have to. People on the forums will port all indicators to mql5 faster than you can ever try them all out. And in the rare case some unknown indicator has not yet been ported you just have to mention it on one of the mql5 forums and wait ~2 ...

Metatrader 4 vs Metatrader 5!