# of bars are different in multi time frame strategy

[binwang2]

Hi NT experts,


I have an issue of having different bars loaded when using multiple time frames.


When using 1 min bar only, the loaded bar when starting a strategy can be well beyond 10,000.


When adding 1 min bar as secondary to 1 sec (primary), both of same instrument, the max loaded bar for 1 min series is 4067, a magic number.


Under option tab, the setting for min bar series to load is 30 days of historical data, which should have allow more than 40,000 bars to be loaded.


I am using Interactive Brokers and it has restriction on max bars to be retried through API. However, these restrictions should give same number of bars for the same time frame of the same instrument, regardless of other data series in the strategy. At least that is my assumption.


Any suggestions as to what is going on?

Regards,

[NinjaTrader_JoshP]

Please clarify how you are counting the bars. Thank you.

[binwang2]

Please clarify how you are counting the bars. Thank you.

Using CurrentBar.

With 1 min data series only, it is just CurrentBar.

When adding it to a sec data series as primary, i count this way:
if (BarsInProgress ==0)
{ //Print BarsInProgress and CurrentBar};
if (BarsInProgess ==1)
{// Print BarsInProgress and CurrentBar};

In both cases, the CurrentBar will start with min bar required (20 in this case) and all the way up to thousands. The loaded bars are counted as the number of bars keep printing with each coming tick but no longer increase within the current timestamp. Of course it will increase by 1 when the time stamp advaces by 1.

[NinjaTrader_Bertrand]

Thanks for clarifying binwang2, IB would also have a general data restriction for how much data you could access in a certain time period. I would suggest you try this in the following manner -

1) Disconnect NT from IB

2) Clear out all unneeded TWS tickers, NT charts & Market Analyzer windows

3) Wait about 10 min for your data status to change with IB

4) Reconnect fresh and retry downloading the data - same outcome?

5) If yes, any log tab errors to report?

Thanks