[amibroker] variable styles for same array

["john gibb" <jgibb1@xxxxxxxxxxxxx>]

I am trying to achieve the indicator style shown on the attached (from
stockcharts.com) with something like:

    wayup = rate >= -20;
    medium = rate < -20 AND rate >= -80;
    waydown = rate <- 80;
    s = IIf(wayup OR waydown,styleHistogram,styleLine);
    Plot(rate,"rate",colorRed,s);

but i get this error on the 's' in the Plot statement:

    3-th argument of function call has invalid (or unsupported) type.

I also tried:

    Plot(rate,"rate",colorRed,LastValue(s));

but got only a Histogram or Line, not both

and I tried:

    if (wayup OR waydown)
        Plot(rate,"",colorRed,styleHistogram);
    else
        Plot(rate,"",colorRed,styleLine);

but got:

    "Condition in IF, WHILE, FOR statements has to be Numeric or Boolean
type. You can not use array here."

Any suggestions?

thanks

-john


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Attachment:
variable style.doc

Attachment: Description: "Description: MS-Word document"