[amibroker] get single day data from Close?

["H L" <hulu800@xxxxxxxxx>]

This may be a really simple question. I want to run a scan on a certain day (e.g., 3/4/2009) using that day's close data, so I set the Range in Automatic Analysis as "from 3/4/2009 to 3/4/2009", in the AFL script I used Last=LastValue(Close) to try to get the close price on 3/4/2009, but it actually returned today's close price. 

So my question is: how to extract the data on a specific date from Close or other array-type price data?



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