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RE: [amibroker] IIf function



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Maybe try this
Title = EncodeColor(selectedvalue(ChCol)) + WriteVal(ChPct,1.2);

Cheers,
Graham
http://groups.msn.com/ASXShareTrading
http://groups.msn.com/FMSAustralia


-----Original Message-----
From: harvey_1929 [mailto:Hhp@xxxxxxx] 
Sent: Monday, 25 August 2003 12:26 PM
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] IIf function


Would someone please explain to me why the following code fragment 
does not work.  It is part of an IB formula for a price display.

ChPct = ROC(C,1);
ChCol = IIf(ChPct>=Ref(ChPct,-1), colorGreen, colorRed);
Title = EncodeColor(ChCol) + WriteVal(ChPct,1.2);

When I try to apply it I get the response "Bad args.  0-th argument 
of function call has invalid (or unsupported) type", and also "Error 
1. Operation not allowed".

The problem is the condition in the IIf function.  I can replace 
line 2 with "ChCol = colorGreen" and it works.  I can substitute a 1 
or a 0 for the condition and get the color switches.  The condition 
I have set up must evaluate to True (1) or False (0).  What am I not 
seeing?  Thanks for any enlightenment.

HHP
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