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It is done in realtime where bid and ask are updated automatically.
Point is that you need to use DDE plugin and for that you need to
configure a (new) database.
AB has no "price arrays" available to store bid and ask, only to
store Last. (Therefore GetRTData gives you only the last value:
previous values are not stored.)
The method I describe creates MSFT_bid, MSFT_ask etc. as if these
were a separate tickers, so where you'd normally store Last, you now
store Bid or Ask.
There was another thread on DDE/Excel linking:
http://finance.groups.yahoo.com/group/amibroker/message/94651
As said, it is a cumbersome method, only to be used if you
desperately want bid/ask history.
Hope this helps, feel free to ask.
-treliff
--- In amibroker@xxxxxxxxxxxxxxx, C W <chwinc2000@xxx> wrote:
>
> I read the posting and it seems you have to create a database for
it. Can this be done in realtime where these bid and ask prices will
be updated automatically? Can you please clarify how this can be done?
>
> Thanks.
>
> treliff <treliff@xxx> wrote:
> I've been doing it this way for 2 years now and afaik
it's still the
> only way. Very cumbersome but it works:
>
> http://finance.groups.yahoo.com/group/amibroker/message/76038
>
> -treliff
>
> --- In amibroker@xxxxxxxxxxxxxxx, "chwinc2000" <chwinc2000@> wrote:
> >
> > Hi All,
> >
> > When using getRTDATA() function to retrieve Bid and Ask prices.
Is
> > there any way for these to be retrieved into a OHLC format? So I
can
> > create a 20 period EMA of the BID or ASK.
> >
> > Thanks.
> >
>
>
>
>
>
>
> ---------------------------------
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