Support Board
Date/Time: Sun, 24 Nov 2024 13:58:48 +0000
Data Downloading
View Count: 1495
| [2013-10-28 09:55:26] |
| User92573 - Posts: 530 |
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Dear Sierra I have read the various articles on SC data but still have 2 questions. 1) The .scid files for the symbols seem to vary in size dramatically even though I am downloading the same data range for each file. For example my Global Setting is 500 days (IDSTU = 1 second) which commences on all files around 15 June 2012. An example would be the GBPUSD which is 533MB whereas EURCHF is 298MB. Why is this and could I have a data issue in my Historical Data files? 2) I'd like to reduce the size of these files without adversely affecting my ability to review the data at a later date. a - To reduce the file size I see that I can select various increments of storage time units. Does this mean that if I select 4 second units my real-time update of the Historical Data, post download will save in 4 sec increments or is the Historical Data downloaded in 4 second increments and the real-time data in a different unit and if so what? b - Will reducing the storage time unit from 1 second to 4 seconds result in a file size approx. 25% of the previous size as the material suggests? Thank you in advance. |
| [2013-10-28 10:01:07] |
| User92573 - Posts: 530 |
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As an addition to the previous question the EUR/JPY data file size is 623MB with the USDCAD being 340MB with the same data download settings.
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| [2013-10-29 09:16:07] |
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We had a look at this, and we do notice the same differences with file sizes. It just has to do with the frequency of updating for the symbols from the data source. No further comment.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
| [2013-10-29 09:18:09] |
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2. If you compress the historical data records in a data file, it has no affect upon future real-time data collection. That will be at whatever the Intraday Data Storage Time Unit is set to.
Sierra Chart Support - Engineering Level Your definitive source for support. Other responses are from users. Try to keep your questions brief and to the point. Be aware of support policy: https://www.sierrachart.com/index.php?l=PostingInformation.php#GeneralInformation For the most reliable, advanced, and zero cost futures order routing, *change* to the Teton service: Sierra Chart Teton Futures Order Routing |
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