[amibroker] Help with IIF

[Rakesh Sahgal <rakeshsahgal@xxxxxxxxx>]

Group
 
I want to write a condition that says:
 
1. choose the highest high in the last 20 periods.
2. if the 20 period high is less than 30 period hi then use the 30 period hi.
 
I want to look for a high as far back as the last 100 odd bars.
 
The condition I wrote is as follows:
 
IIf(HHV(H,20)<HHV(H,30),HHV(H,30),IIf(HHV(H,30<FONT face="Courier New"
 color=#000000>)<HHV(H,40),HHV(H,40),IIf(HHV(H,40)<HHV(H,50),HHV<FONT face="Courier
 New" color=#000000>(H,50),IIf(HHV(H,50)<HHV(H,60),HHV(H,60),HHV(H,20<FONT
 face="Courier New" color=#000000>)))));
 
This is obviously not yielding the desired results hence the request for help. Will some kind soul tell me where I am tripping? Or is this approach to solving the problem not the correct one.
 
Thanks in advance for any help.
 
Rakesh
 
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