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Title: Message
Is
there a way to write to the AB database using AFL. For example, doing share
splits, or adding Open interests.
Regards
Paul.
-----Original Message-----
From:
Yuki Taga [mailto:yukitaga@xxxxxxxxxxxxx]
Sent: Wednesday, 12 January
2005 5:09 PM
To: sellcarad
Subject: Re: [amibroker] Re: Help
setting up initial database
Hi sellcarad,
Wednesday,
January 12, 2005, 10:44:42 AM, you wrote:
s> Yuki,
s> With
regard to the Metastock data, I already have back to around
s> 1998 on
my hard drive. With this data, do I simply need to use the
s>
File/Import Metastock Data command? If so, to what folder is it
s> imported? Is a new AB folder? Was your reference to
Metastock data
s> plugin assuming I would be accessing the data from
Metastock/Reuters?
First thing you have to do is, create a
database. Without creating a
database, you will not even be able to
view your MS data in AB.
When you create a new database, one of the
configuration options is
"enable local database". Check it.
This enables AB to save your MS
database to a local AB database. You
will have redundant databases
in this case, but that is usually not a
problem. You will not be
able to write to or modify the MS data via
AB. You will have to use
whatever tools (Downloader or other tools)
that you normally use to
modify or update the MS database. In AB,
that database is
essentially read-only.
But the local database that
you enable in the configuration dialog
gives you a local AB database than
can be modified or updated
directly via AB. One note here: the MS
database is always going to
be the master. Should you modify
yesterday's price on something in
the local database, but NOT in the MS
database, the next time you
access the MS database, AB will use that MS
data to overwrite your
local database. So you will want to either 1)
forget about your MS
database, import it to AB and simply start using AB to
update it, or
2) continue to update with MS tools, in which case the MS
database is
going to be the master, as far as AB is concerned.
When
you create a new database, you will specify the name of the
folder where it
is created. AB will take care of the rest, according
to the
configuration options you choose.
Small rant here: If you create
a database in a folder in the AB root
directory, the file menu on AB will
give you a nice clean choice,
which will simply be the name of that
database folder. However,
should you plan to have several databases,
you may not want to
clutter the AB root directory with them, and may want
to make a
directory called 'Databases' first, then make your other DBs
in
subfolders below that. Sadly, there is a drawback to this. Now,
the
file menu in AB will show the entire path to the database in the
menu
item, instead of simply the name of the database folder. This
may be
a Windows programming problem, or something TJ has not considered;
I
have no idea.
s> Thanks also for the information on culling
down the larger database
s> to one meeting my criteria regarding price
and volume. That sounds
s> like a perfect solution. I didn't
want to download 7200+ everyday
s> when I was only interested in a much
smaller subgroup. Thanks again
s> for the
help.
Sure,
Yuki
Check AmiBroker web
page at:
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