indicator seems to be using realtime data in backtesting

Hi:

I'm slowly learning my way around coding and have run into another problem I'm not sure how to fix.

The attached EA and indicator seem to run as expected in real time - that's good. The EA compares 2 sets of MA and checks a global variable set in the indicator to see what the HULL trend is.

The problem is that when I try use the Strategy Tester, the thing acts like the indicator is still using real time data to calculate with - that's bad.

If anybody can point me in the right direction or has a good example I would appreciate the help.

Thanks,

John

Please note, that this variable is global for whole MT4 instance. If you have live chart with such HMA attached, it will update global variable on each price tick. So, inside strategy tester you will receive the same live value as well.

In general, it is very bad idea to read indicator value like that. You should use iCustom() call instead, to get your value correctly.

Thanks for taking the time to help. I'd tried iCustom originally and it worked fine live, but in back testing it would give an error message - something like "can not resize array." I probably did have another live chart open with this global variable when I was trying to back test.

My primary concern right now is to get it up and running so I can back test and see if it's worth pursuing further. I'll try it with the global variable again and I'll make sure I don't have any charts open. If it shows promise, I'll be back with more questions on arrays.

Thanks,

John

The error you are talking about could come from the indicator, if it is coded in wrong way, maybe some changes will be necessary to backtest it.