Maximum size of an array is about 2 billion values. A double consumes 8 bytes, 2 million ~16 MB.
The documentation on ArrayResize says: Total amount of elements in the array cannot exceed 2147483647.
Will go right ahead then and hope for best with my 4gb ram !
Thx
nadiawicket:
Will go right ahead then and hope for best with my 4gb ram !
Thx
You can do the same file operations using Mql4 code, instead of bash, MQL4/MQL5 can do any operations inside any file. Better yet, you can define your custom structure, and it uses your custom file structure during the file operations.
https://docs.mql4.com/files/filewritearray
FileWriteArray - File Functions - MQL4 Reference
- docs.mql4.com
String array can be written in a TXT file. In this case, strings are automatically ended by the line end characters "\r\n". Depending on the file type ANSI or UNICODE, strings are either converted to ansi-encoding or not. //| Demo_FileWriteArray.mq5 |...
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Need to compare every single bid of last month for some calculations (about 2 million values just for EURUSD alone).
Putting them all in an array (need to do so for 31 instruments) seems too clunky. Any better way?
I have been just writing bids to a file, then using bash on the file (where I can just compare lines instead of dealig with arrays).
Any native mql4 solution? Don't wanna need bash for anything.
Maybe mql5?