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Thanks for the ideas; the second one works well. I rewrote it slightly like
this:
r = RSI(14);
Plot(r - 50, "", colorwhite, stylehistogram);
bgcolor = colorLightGrey;
Plot(r, "", bgcolor, stylehistogram+styleNoLabel+styleNoRescale);
Does anyone know if we can access the colors set up in preferences through
AFL? That'd be a better way to go than hard coding the background color. I
know about the Prefs function, but as far as I can see, it doesn't include
getting back preferred colors.
I couldn't figure out what you were up to with your first idea. Not what I'm
looking for as written, but maybe there's something in there. Doesn't matter
though, since the second one works fine, and is simpler too.
Thanks again,
Dave
> There are 2 ways you could achieve this
>
> xO = 50;
> xC = RSI(14) - 50;
> xH = max(xO,xC);
> xL = min(xO,xC);
> PlotOHLC( xO,xH,xL,xC,"" ,colorblue,stylecandle);
>
> Or
>
> Plot( RSI(14)-50,"",colorwhite,stylehistogam);//your backghround colour
> Plot( RSI(14), "", colorblue, stylehistogram);
>
>
> I have just typed these out, hoping they work, but may have some
> typo errors
>
> Cheers,
> Graham
>
>
> What's the easiest way to plot something that looks like a histogram, but
> has the bars extending up and down from some value other than zero? For
> instance, suppose you wanted to plot RSI above and below 50. You could
> subtract 50 and use a normal histogram, but that makes the readings in the
> title, tooltip and to the right of the graph wrong.
>
> Is there a simple solution I'm not thinking of?
>
> Thanks,
>
> Dave
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