Amibroker full Archives

DISCLAIMER – READ FULL DISCLAIMER HERE

All the information contained on this website is general in nature and does not constitute personal or investment advice. Quant Alpha produces algorithms and software only and does not trade or arrange any trading on your behalf. Quant Alpha will not accept liability for any loss or damage, including without limitation, any loss which may arise directly or indirectly from the use of, or reliance on: its algorithms; the information on this site; or information provided by its managers, partners or affiliates. You should seek independent financial advice and conduct your due diligence prior to acquiring any Quant Alpha technology. Quant Alpha is neither a registered investment advisor nor an investment advisory service and does not provide any recommendations to buy or sell particular financial products.

Before engaging in any trading activities, you should understand the nature and extent of your rights and obligations and be aware of the risks involved. Don’t trade with money you can’t afford to lose. Your trading and investing decisions are entirely your own responsibility. All securities and financial product transactions involve risks. Where Quant Alpha provides hypothetical representations of what the technology has achieved in the past, this has been done with the greatest know-how, data and expert technology that is available, but still, Quant Alpha cannot guarantee that these results have any likelihood whatsoever of being achieved in future. Where records have been provided of how the software has performed on management’s own accounts, whilst these are an accurate and true record of what has taken place in the past, they are not necessarily indicative of future results – the future is as unknown to Quant Alpha management as it is to anyone else. The past performance of any trading system or methodology is not necessarily indicative of future results.

If we have already downloaded several years of historical data using AmiQuote and for any reason we need to re-import this data once again (e.g. into a new database) – there is a way to avoid re-downloading the whole history.

AmiQuote stores all downloaded data files inside of the dedicated destination folder. The exact location can be checked from AmiQuote: Tools->Settings menu:

All recently downloaded files are stored in this folder and we can use ASCII importer in AmiBroker to pick these files manually for import. To do that please follow the steps below:

1. Select File->Import ASCII
2. In the open file dialog navigate to Download folder
3. From Files of type field pick correct import definition to match the source used in AmiQuote:
   
4. mark the .AQH files we want to import (to select all, it is enough to click on any of the files and hit CTRL+A, multiple file selection is also possible by clicking with CTRL or SHIFT keys pressed)
5. press Open button to start import procedure

It is important to remember that by default each new download via AmiQuote overwrites the earlier files, so the AQH files will contain quotes from the very last download for given symbol.

More information about using ASCII importer can be found here:
http://www.amibroker.com/guide/h_amiquote.html
http://www.amibroker.com/guide/d_ascii.html

Filed by Tomasz Janeczko at 4:46 pm under AmiQuote
Comments Off on How to re-import the same data without downloading them again