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Hello,
Yes when importing intraday data into AmIBroker from ASCII file make sure that timestamps
use the BEGINNING time of the bar.
If your other plaform is using shifted timestamps, you need to apply timeshift back in the ASCII importer.
use $TIMESHIFT command in the ASCII importer for that
http://www.amibroker.com/guide/d_ascii.html
Command $TIMESHIFT Define intraday time shift used during import
Arguments <number> number of hours to shift date/time stamps (can be fractional)
Alias
Examples
$TIMESHIFT 2
; will shift 2 hours forward
$TIMESHIFT -11.5
; will shift 11 and half hour backward
$TIMESHIFT -0.08333333333333
; this fractional timeshift will give you -5 minutes.
Best regards,
Tomasz Janeczko
amibroker.com
----- Original Message -----
From: "dloyer123" <dloyer123@xxxxxxxxx>
To: <amibroker@xxxxxxxxxxxxxxx>
Sent: Thursday, July 30, 2009 3:51 AM
Subject: [amibroker] Re: Importing Data from TradeStation - Timestamps Off
> The first bar on a 5 minute chart is 9:35. That is correct.
>
> How are you doing your export?
>
> I had to write a indicator in easy lang that uses "fileappend" to write the file in a format that works. There is a dll on the
> wiki that is "fastfileappend" that does a little better job.
>
> The hard part is getting it to flip from one chart to another to export data for all of the symbols I trade.
>
> Takes all day to get daily, minute and tick data.
>
> -Doug
>
> --- In amibroker@xxxxxxxxxxxxxxx, "davemabe2000" <davemabe@xxx> wrote:
>>
>> I'm trying to import 5 minute bar data from TradeStation into an Amibroker database.
>>
>> I export the data from TS and the timestamp on the bars is for the bar close, not the bar open. Amibroker looks like it's
>> assuming the timestamp is for the bar open.
>>
>> For example the opening bar is 9:35 in the TS export instead of 9:30.
>>
>> Is there anyway to tell Amibroker to interpret the timestamps as the bar close time instead of the bar open when importing?
>>
>> Also, the TS export doesn't have the symbol column, so I have to add it each time. Is there a way I can customize the import to
>> use a certain symbol by default if one does not exist?
>>
>
>
>
>
> ------------------------------------
>
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------------------------------------
**** IMPORTANT PLEASE READ ****
This group is for the discussion between users only.
This is *NOT* technical support channel.
TO GET TECHNICAL SUPPORT send an e-mail directly to
SUPPORT {at} amibroker.com
TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at
http://www.amibroker.com/feedback/
(submissions sent via other channels won't be considered)
For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG:
http://www.amibroker.com/devlog/
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