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Wrong close price in Yahoo data
You may have noticed over last few days that on some symbols (stocks and ETF that pay dividends) close price is below open, high, low prices. This is new Yahoo error due to the fact that they added...
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How to install AmiQuote 3.14 correctly
UPDATE: AmiQuote 3.15 public version is available now. AmiQuote 3.15 has been announced here: http://www.amibroker.com/devlog/2017/06/01/amiquote-3-15-released/ AmiQuote 3.15 is not a standalone...
View ArticleAmiQuote Yahoo Historical stopped working
In May 2017 Yahoo Finance started making changes to their web services. During this time certain services may be interrupted or broken. Three AmiQuote functionalities are affected by recent Yahoo...
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Where does AmiQuote save downloaded data?
AmiQuote is a companion program shipped with AmiBroker, which allows data from free resources, such as Yahoo Finance, Google Finance and others. Since it is a separate application, then it can work...
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Do not exceed real-time symbol limit
When we subscribe to a real-time datasource, such as eSignal or IQFeed – our subscription package determines how many symbols we can access in realtime at the same time. The plugin configuration in...
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How to count symbols in given category
When we want to find out how many symbols belong to given category (such as watchlist) then for manual inspection, it is enough to hover the mouse cursor over the particular category name in the...
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How to create custom import definition for ASCII importer
When we use File->Import ASCII to import data, we can choose import file format using one pre-defined import format definitions. As it is explained in the manual...
View ArticleHow to combine multiple databases into one
In order to combine data stored in two separate databases within a single database we may consider one of the following options: ASCII IMPORT/EXPORT METHOD First of the possible ways is to export data...
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How to categorize symbols coming from Metastock databases
Many data vendors that deliver data in MetaStock database format offer quotes in separate MS databases organized in several folders, separate for different markets or industries. AmiBroker does not...
View Article“Invalid symbol” message for stocks traded on multiple exchanges (IB)
Some of the symbols available from Interactive Brokers data-feed may be traded on multiple exchanges. In such case, when we enter the symbol to the database as: INTC GLD CSCO then we may see “Invalid...
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How to backup data from an external source
There is a number of data-plugins, where AmiBroker reads quotes directly from an external database maintained by the data-vendor (such as TeleChart, FastTrack, PremiumData or other MetaStock-based...
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How to re-import the same data without downloading them again
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...
View ArticleImporting auxilliary data into AmiBroker database
AmiBroker database structure offers the following fields: Open, High, Low, Close, Volume, OpenInt, Aux1, Aux2. The last two fields, i.e. Aux1 and Aux2 are meant for storing any custom historical...
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Choosing compression method for Aux1 and Aux2 fields
Apart from regular Open, High, Low, Close, Volume, OpenInt fields – AmiBroker database allows to store custom data in auxiliary fields called Aux1 and Aux2. This allows to import our custom arrays and...
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How to delete quotes without removing the symbol from a database
In order to delete quotations from a local database manually, we can use Quotations Editor (Symbol–>Quote Editor), then mark the required range of quotes and press Delete button. To mark a range –...
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Importing data using multiple column separators
When we import data from ASCII (plain text) files, sometimes the data in the input files are arranged in columns separated by different characters. This article shows how to configure Import Wizard /...
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How to verify if EOD data is available for download at Google Finance
AmiQuote downloader allows to get free quotes from a number of sources included Google Finance. AmiQuote works like a specialized web-browser, so the quotations can be downloaded if they are accessible...
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How to find correct symbol for Interactive Brokers data
Sometimes Interactive Brokers symbology may be difficult to figure out. It is however very easy to find out proper symbol using Contract Description window in the TWS. The general format for symbols...
View ArticleHow to correct forward looking timestamps
Some platforms, like Tradestation, use “future looking” timestamps in their data so for example 5 minute bar covering market activity from 9:30:00 till 9:34:59 is stamped with 9:35:00 (future time –...
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How to combine data from multiple input files
Sometimes it is useful to update existing database with quotes from other source and sometimes we just want to update one data field, leaving other unaffected. For example we may want to import data...
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