[amibroker] Line color question

["steve_almond" <me@xxxxxxxxxxxxxxxxxxxxx>]

I have a chart with a plot like so:

Plot(HHV(C,99),"HHV/99",1,1);

It plots a "stairstep" up or down

I want the line to be green when it is rising or steady (after an 
upmove), red when it is falling or steady (after a downmove).

I tried substituting 'col' in the above formula where:

Col=IIf(HHV(C,99)<Ref(HHV(C,99),-1),4,IIf(HHV(C,99)>Ref(HHV(C,99),-
1),colorBrightGreen,29));

This colors the steps (up and down) correctly, but not the 
horizontal, steady lines.

Can anyone help?

Steve




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