[amibroker] assign an empty value?

["dsb_mac" <dsb_mac@xxxxxxxxxxx>]

How do I assign an empty value? I'm writing an indicator and I only 
want it to display a value when the condition is true. I use IIf() 
and then Plot() it but I don't know what to put in the FALSE portion 
of the command so that there's no value to display when the 
condition is false.

Thanks!





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