[amibroker] Re: Backwards loop

["Mike" <sfclimbers@xxxxxxxxx>]

I'm not sure that I entirely understand your question. But, try something like this:

per = 10;
xxx = High - Low;      // Use any _expression_ you want
diff = 0;
cont = NZ(null, null);

currentBar = BarCount - 1;
firstBar = max(0, currentBar - per);

for (bar = currentBar - 1; bar >= firstBar; bar--) {
   if (xxx[bar] > diff) {
      diff = xxx[bar];
      cont[bar] = (currentBar - bar);
   } else {
      diff = iif(bar > firstBar, xxx[bar - 1], 1);
      cont[bar] = cont[bar + 1];
   }
}

Plot(xxx, "XXX", colorBlue, styleBar);
Plot(cont, "CONT", colorRed, styleStaircase | styleOwnScale);

Mike
--- In amibroker@xxxxxxxxxxxxxxx, "angio" <angio1967@xxx> wrote:
>
> hello guys,
> can someone help me to write this loop for an indicator, there are many days that I try but I can't do !!!
>
> - the beginning of the loop is the bar before today
> - the loop length is the variable PER (for example 10)
>
> *** Then the loop works from BAR -1 to BAR -10 ***
>
> PER=10;
>
> XXX= my _expression_;
>
> DIFF=0; set variable to 0
> CONT=0; set variable to 0
>
> in the loop:
>
> If XXX > DIFF
> then DIFF = XXX
> and CONT assumes the number of backwards bar in the loop
>
> for example:
>
> BAR -1 XXX > 0 cont = 1
> BAR -2 XXX > diff cont = 2
> BAR -3 XXX > diff cont = 3
> BAR -4 XXX > diff cont = 4
> BAR -5 XXX > diff cont = 5
> BAR -6 XXX > diff cont = 6
> BAR -7 XXX < diff cont = 6 break loop, CONT assumes 6
> BAR -8 XXX < diff cont = 6
> BAR -9 XXX > diff cont = 6
> BAR -10 XXX > diff cont = 6
>
> The main problem is how to set the beginning of the loop and how to assign values to the arrays earlier in reverse from the usual.
>
> I hope I was clear, thanks for the reply.
> Angio
>

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