Mt4 Coding Here

I need an explanation as to how mt4 executes certain functions.

1) if i have 100 bars of data, does mt4 store the data in a array, with oldest being bar1, and the most current being bar 100 e.g.,
close[1] is the oldest close, and close[100] is the current close?

2) for(i=Bars-10;i>1;i--)
how does mt4 evaluate this, or how does it calculate the loop?

3) what does highest(Null,0,Mode_high,10,10+1) return, what is mt4 doing here?

Liz

On blackberry, so short reply. More later.

Assuming 100 bars: current bar is index 0, oldest bar is index 99.

Your 'for' loop starts near the oldest bar and end at bar 2, so it doesn't iterate over bar 1 or 0. Also, it doesn't make any accomodations for bars already processed in a previous iteration.

For detailed help on functions (like highest) place cursor on function name and press F1.

Hope that gets you started.