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10,000 bars of minute data = 22 days. (7.5 hours/day * 60 minutes = 450
bars per day)
You will need 100,000 or 1,000,000 bars to save to keep more (all?) of
the history you want.
--
Terry
-----Original Message-----
From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On
Behalf Of yokehg
Sent: Saturday, May 13, 2006 09:23
To: amibroker@xxxxxxxxxxxxxxx
Subject: [amibroker] Re: IB backfill also delete some past data?
Currently number of bars to load in database setting is 10000. In my
experience, higher setting will only display/download more bar in my
chart. But still, some of the oldest is deleted. For example, roughly,
if I get new 10 bars, the first 10 bars in the previous chart will be
deleted. I don't even mark 'Limit number of saved quotations'.
--- In amibroker@xxxxxxxxxxxxxxx, "cstrader232" <cstrader232@xxx>
> Every time I update historical data (1 minute) using IB backfill
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