The short answer:
Yes, it is. You can approach the problem in two ways: 1. By coloring the
bars/candlesticks (your interest) or 2. By changing the background colors (my
preferred approach). I broke them up in 2 emails, to keep them short.
In both approaches
it is necessary to adjust the range dynamically to the Total Visible Range.
Without doing that one gets lost very easily. Depending on the volatility
you will find that sometimes a close within the range, other times a H-L within
the range is desired. Also, if you want to use candlesticks you can only change
the outline colors and have to manual adjust the candlestick colors (typically it
is sufficient to set only the Down Color to the background in Preferences;
unfortunately that is a global setting which affects all indicators).
I personally feel,
that I spend too much time determining the colors of the bars and really end up
looking at the range itself
//===============Method1: Changing the bar
colors============================
Title = EncodeColor(4)+ _DEFAULT_NAME()+"; "+EncodeColor(1) + StrFormat("{{NAME}}
- {{INTERVAL}}; {{DATE}}; O=%g, H=%g, L=%g, C=%g (%.1f%%)
{{VALUES}}", O, H, L, C, SelectedValue( ROC( C, 1 ) ) );
//======================
Using Different Price Colors========================
LVVL=LowestVisibleValue(L);
HVVH=HighestVisibleValue(H);
UpperPrice=round(10000*(LVVL+0.7*(HVVH-LVVL)))/10000; //Forex: Rounding to get rid of annoying
5th digit; Not strictly necessary
LowerPrice=round(10000*(LVVL+0.4*(HVVH-LVVL)))/10000; //Forex: Rounding to get rid of annoying
5th digit; Not strictly necessary
UpperBandPrice = Param("UpperBand-Price",UpperPrice,LVVL,HVVH,0.0001);
LowerBandPrice = Param("LowerBand-Price",LowerPrice,LVVL,HVVH,0.0001);
BandColor = ParamColor("Band Color", colorGreen);
OutOfRangeColor = ParamColor("Out of Range Color", colorGrey50);
CloseRangeSel=ParamToggle("Price Selection","Close|Range",0);
StyleSel=ParamToggle("Style Selection","Bar|Candle",0);
if(!CloseRangeSel)
//Selects
whether C or (H-L) is used as criterion
{Color = IIf( C >= LowerBandPrice AND C<=
UpperBandPrice,BandColor,OutOfRangeColor);}
if(CloseRangeSel)
{Color = IIf( L >= LowerBandPrice AND H<=
UpperBandPrice,BandColor,OutOfRangeColor);}
if(!StyleSel)
{Plot( Close, "Close", Color, styleBar
);}
if(StyleSel)
{Plot( Close, "Close", Color, 64 );} //IN
Tools/Preferences/Colors:Set DOWN CANDLESTICK TO THE BACKGROUND COLOR!!!!!!!!
Plot(UpperBandPrice
,"UpperBandPrice
",BandColor ,13);
Plot(LowerBandPrice
,"LowerBandPrice
",BandColor ,13);
From:
amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Potato
Soup
Sent: Thursday, December 31, 2009 6:51 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Is it possible to color only certain bars in a
price chart based on criteria?
Say
if I want all bars that are between a certain range to be red and the rest
blue, or something like that. Is that possible in AB?
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