[amibroker] Scan with AA during market hours and after hours

["amarilloblanco" <amarilloblanco@xxxxxxxxx>]

During the market hours I run AmiBroker with InteractiveBrokers. I have 
6 symbols in my AmiBroker with 4 charts active, ER2;ES;YM;NQ, but just 
ER2 run in my Automatic Analysis, with scan every 1 min.

At the end of the day I run again my Automatic Analysis, with the same 
scan, but here is when I find not the "exact" results as my Alert 
Output running the marker hours live and online.

I have some delay between signals in my Alert Output and the time I 
watch in my IB clock. Delay may be 15-25 sec.

Some signals are exact and at the same time and price, others prices 
are 0.2-0.5 diferents.

Questions:
1.- What analysis is more valid? real time or scan at the end of the 
day?
2.- What could be the issue giving me differents results?

I trade exclusively using my signals in my Alert Output, then I would 
like to be as accurately as the program gives me signals.

Could someone give some feedback?

Thanks in advance.
Eduardo




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