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StDev(anyARRAY,1) is equal to 0.
When we say 1std, we usually mean 1*StDev(array,periods), as 2std is
2*StDev(array,periods).
Perhaps you need something like this
per=10;//your period
mid=(H+L)/2;Plot(mid,"mid",colorblack,1);
up=mid + StDev(mid,per);
dn= mid - StDev(mid,per);
Plot(up,"up",colorRed,styleLine);
Plot(dn,"dn",colorGreen,styleLine);
Dimitris Tsokakis
--- In amibroker@xxxxxxxxxxxxxxx, "dom1_1998" <Dom2000@xxxx> wrote:
> I'm trying to plot a channel 1 std dev above and below (H+L)/2.
>
> I tried the following:
> mid=(H+L)/2;
> up=mid + StDev(mid,1);
> dn= mid - StDev(mid,1);
>
> Plot(up,"up",colorRed,styleLine);
> Plot(dn,"dn",colorGreen,styleLine);
>
> I get only one line plotted,(red) with a red value and green value
on
> the y axis. Plus both values are the same amount.
>
> TIA,
>
> Dominick
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