Bug in arrow indicators

[Jomar Ferreira]

Why most indicators that I put in graph stay with aleatory arrows when I alter symbol and change the timeframe in same window? Its any garbage that going accumulating in the buffers?

Can you explain why it ocurrer? and what I can do to solve it?

Thanks!

Sample:

[William Roeder]

Jomar Ferreira: Its any garbage that going accumulating in the buffers?

Yes. Set your buffer(s) element to empty value at the top of the loop.

[Jomar Ferreira]

Hi William, thanks for answer. So just put "ArrayInitialize", but in which function ? OnCalculate or OnInit?

[William Roeder]

I didn't say anything about using AI. If you set an arrow on bar zero and later it should not be there, you have to remove it.

[Vladimir Karputov]

Jomar Ferreira :

Why most indicators that I put in graph stay with aleatory arrows when I alter symbol and change the timeframe in same window? Its any garbage that going accumulating in the buffers?

Can you explain why it ocurrer? and what I can do to solve it?

Thanks!

Sample:

This behavior indicates errors in your programming. When you write an indicator, you are obliged to force recalculation of your indicator buffers when downloading history or at the first start.