[amibroker] Optimize with Tickers-> strings not accepted?

["Stephane Carrasset" <nenapacwanfr@xxxxxxxxx>]

Hi,

just want  to know why this works
ticker="^DJI";
scSwingFibo(ticker,4);

and the optization does not work
tick=  Optimize("tick", 1, 1, 2, 1 ); 
ticker=IIf(tick==1,"^IXIC","^DJI");
scSwingFibo(ticker,4);

Stephane

PS: scSwingFibo(ticker,4); is a dll of course but the optiation seems 
to do not accept strings??

stephane


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