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Why I can not download the data as much as you can see in the chart?
 Post subject: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Fri 19 Apr, 2013, 09:27 

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Hi support,

Why I can not download the data as much as you can see in the chart? (in ex. ZigZag indicator)
ex for EURUSD on weekly chart I can see data from 1973.
But from strategy I can download only from about 2007.
If I want take data eariel I receive JFException:
08:21:10 Requested time interval from [2007-02-26 00:00:00:000] to [2013-04-15 00:00:00:000] GMT is not valid

More over available time interval for other instrument is smaller. ex EURCAD only from 2008/2009 (on weekly)

Pleas see attachet strategy. And you can see that for EURUSD you chan download data from aboyt 300 candles but for 350 not.

How can I download eariel data?


Attachments:
AvailableIntervalTest01.java [2.28 KiB]
Downloaded 455 times
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 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Fri 19 Apr, 2013, 09:32 
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See:
https://www.dukascopy.com/wiki/#Historical_Data_Service


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Fri 19 Apr, 2013, 09:51 

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OK, it return that first weekly candle for EURUSD is from 1972.05.22, but in my example I can not download data even from 2007!
Please look at my example.
How can I download data (inzigzag indocator) earlier than 2007?


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Fri 19 Apr, 2013, 11:18 
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Did you run the example strategy for EURUSD given in our previous post? Did it return dates earlier than 2007?


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Fri 19 Apr, 2013, 11:32 

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Yes. As I wrote it return: 1972.05.22 date. for weekly bars in EURUSD


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Mon 22 Apr, 2013, 20:56 

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So is it possible to download the earlier data (before 2007) for zigzag indicator? and how?

Please advise...


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Tue 23 Apr, 2013, 07:18 
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From API there is as much available data as returned by the Historical Data Service methods referred to above.


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Tue 23 Apr, 2013, 16:26 

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That's why I get an exception:

15:19:07 Requested time interval from [2006-08-07 00:00:00:000] to [2013-04-22 00:00:00:000] GMT is not valid

When I run something like this:

long ZZStartTime = history.getBarStart(Period.WEEKLY, tick.getTime()-Period.WEEKLY.getInterval()*350);
long ZZEndTime = history.getBarStart(Period.WEEKLY, tick.getTime());
double[] zig = indicators.zigzag(Instrument.EURUSD, Period.WEEKLY, OfferSide.BID, 12, 5, 3, Filter.WEEKENDS, ZZStartTime, ZZEndTime);


if the Historical Data Service methods referred to above return that data is available from 1972-05-22.

More detail in the attached above strategy.

Please explain it to me


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Wed 24 Apr, 2013, 13:55 
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use IHistory.getBarStart, instead of simply multiplying the interval, we have added another example to wiki, see:
https://www.dukascopy.com/wiki/#Historical_Data_Service/Multiple_candle_periods


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Fri 26 Apr, 2013, 08:48 

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I use IHistory.getBarStart, As you can see above.
It is not problem.

As I use: IHistory.getBars also there is no problem. Here you can download the data from date which return Historical Data Service methods.

The problem is if I use IIndicators.zigzag. (not IHistory.getBars)
Please look at my code above.

How can I get the data for the indicator (zigzag) earlier then 2007 for EURUSD, earlier then 08/2009 for EURCAD...?


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Tue 07 May, 2013, 16:06 

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Is there any expected date of repair this bug?


 
 Post subject: Re: Why I can not download the data as much as you can see in the chart? Post rating: 0   New post Posted: Wed 07 Aug, 2013, 09:55 
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Fixed.


 

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