Re: [amibroker] Re: IB Backfill, AmiBroker Email List Archive

>I may have misunderstood the complaint below, but I believe that the last 2 messages actually referred to the fact that

[ snip[

From: amibroker@xxxxxxxxxxxxxxx [mailto:amibroker@xxxxxxxxxxxxxxx] On Behalf Of Tomasz Janeczko
Sent: Sunday, September 09, 2007 2:59 AM
To: amibroker@xxxxxxxxxxxxxxx
Subject: Re: [amibroker] Re: IB Backfill

Hello,

Did you read the manual?

http://www.amibroker.com/guide/h_ib.html

Due to the limitations of TWS (only ONE backfill at a time and throttling backfill request

for 3 minutes every 40 requests) there is a special method of backfilling all

symbols implemented that steps through all symbols in RealTime Quote list one symbol at a time

(to address TWS limitation) that waits until previous symbol is backfilled prior to starting new one.

Backfill Current option allows to force backfill of currently selected symbol, while Backfill All RT quote window symbols allow to force backfill of all symbols listed in Real-Time Quote window. Backfill of multiple symbols is performed sequentially (one at a time) due to limitations of TWS.
Best regards,

Tomasz Janeczko
amibroker.com

----- Original Message -----

From: "Tony" <talcamo@xxxxxxxxx>

To: <amibroker@xxxxxxxxxxxxxxx>

Sent: Sunday, September 09, 2007 7:12 AM

Subject: [amibroker] Re: IB Backfill

> Hi,
> I find it really annoying as well that IB does not backfill
> automatically if you are not directly looking at the specific
> ticker. I do the following.... I open the automatic analysis form,
> then I check the run every box and change the default to be every
> one minute for every ticker in my intraday database (i only have
> 40). There is never a "pregnant pause" waiting for the backfill
> switching looking for a new ticker. Hope this helps.
> Tony
>
> --- In amibroker@xxxxxxxxxxxxxxx, "murthysuresh" <money@xxx> wrote:
>>
>> put all the symbols in a watchlist and run a scan daily. you can
>> possibly mechanise it with batman and it will backfill it for you.
>>
>> --- In amibroker@xxxxxxxxxxxxxxx, "MountainTopTrader"
>> <mountaintoptrader@> wrote:
>> >
>> > The only way I get IB backfill to work is to double click on
> symbol
>> to
>> > display in chart. Otherwise, symbols in quote sheet will go
> weeks
>> without
>> > any backfill. Is there any way to get it to backfill all symbols
>> > automatically when connected?
>> >
>> > Earl
>> >
>> >   _____
>> >
>> > From: amibroker@xxxxxxxxxxxxxxx
> [mailto:amibroker@xxxxxxxxxxxxxxx]
>> On Behalf
>> > Of murthysuresh
>> > Sent: Monday, August 27, 2007 12:32 PM
>> > To: amibroker@xxxxxxxxxxxxxxx
>> > Subject: [amibroker] Re: IB Backfill
>> >
>> >
>> >
>> > http://www.amibroke <http://www.amibroker.com/ib.html>
> r.com/ib.html
>> > it will provide 30 days of backfill. but it is slow backfill
>> > --- In amibroker@xxxxxxxxx <mailto:amibroker%40yahoogroups.com>
>> ps.com,
>> > "billbarack" <wbarack@> wrote:
>> > >
>> > > I believe that I remember someone saying you can get up to 30
>> days RT
>> > > backfill from IB. Is this correct? or is EOD only?
>> > >
>> > > If so, how do you set it up. I played with the database
> settings
>> but
>> > > all I can get is about 3 hours of backfill on a 5 second Base
>> Time
>> > > Interval.
>> > >
>> > > Can someone explain how this all works. I haven't found my
>> answers in
>> > > the documentation yet but if it is there, please point me in
> the
>> > right
>> > > direction.
>> > >
>> > > Thanks,
>> > >
>> > > Bill
>> > >
>> >
>>
>
>
>
>
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