problem solved....
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I wonder if the following could be realized with icustom function.
I have written my own indicator. I'd like to leave the timeframes unspecified as a and b. And then in my EA, I use the icustom function to give a and b different numbers and get results from the indicator.
Can anybody tell me if this could be realized, what type of variables should I define a and b in the indicator? Code is welcome....thanks!