I run scan several times so it can backfill multiple symbols in the filter.
--- In [email protected], "Barry Scarborough" <razzba...@...> wrote: > > AB truncates data that is larger than your database settings. It is lost. The > default number of bars is too small and most of us wonder why our data keeps > getting lost. You know it was there and poof its gone. > > If you are collecting 1 minute data change your File > Database settings to > 250,000 or 500,000 bars. That will allow you to save 2 or 4 years of years of > data, which you will need for back testing and such. > > IB backfill sucks. If you have many symbols it will stop back filling for a > while, 5 or 10 minutes, and you will have to continually accept the trading > data. The 180 day back fill barely works but I have trouble during normal > trading hours and I can't get it to back fill more than one symbol at a > time. > > Barry > > --- In [email protected], "pedrof123" <pedrof123@> wrote: > > > > I am using IB TWS plug in to view futures intraday data. The service only > > backfills 30 days of data. Right now, it looks like I am losing the any > > data older than 30 days. Is there a way to store the data , so that I can > > have a long term futures intraday data? > > > > Thanks > > Pedro > > >
