If you want to keep data between ticks, declare the array globally.
![MQL5 - Language of trade strategies built-in the MetaTrader 5 client terminal](https://c.mql5.com/i/registerlandings/logo-2.png)
You are missing trading opportunities:
- Free trading apps
- Over 8,000 signals for copying
- Economic news for exploring financial markets
Registration
Log in
You agree to website policy and terms of use
If you do not have an account, please register
Hello, I am trying to create persistent set of data for an array, as a test, but it doesn't work. This is the code:
But I always get the message "Array size = 0". Could someone please clarify what I'm missing? Why isn't the data saved between ticks?
Thank you :)