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This function parses a symbol custom database and returns a value of one on bars where the database field data contain a specific word.
This function accepts three parameters. The first one is the database name (Example: ' yahoo_news ' if you are using the yahoo news downloader - Yahoo News), the second one is the field name (Using the same downloader, it should be 'title') and finally the last parameter is a list of the words we are searching for. You can add one or many words by separating them with a comma.
Here is an example: (This function's name is 'ContainsWords')
indicator1 = ContainsWords('yahoo_news', 'title', 'Buy,Jump,Big,Rise');
In addition, here is a snapshot of the 'yahoo_news' database for the stock symbol 'aa':
25/09/2009 15:14 - Alcoa Stock: Time to Buy Yet?
25/09/2009 16:11 - Alcoa Announces Third Quarter 2009 Dividend
25/09/2009 12:45 - Wall to Wall Street Coverage: Upgrades and Downgrades
25/09/2009 00:01 - [$$] Alcoa Leads Decline; Red Hat Is White Hot
24/09/2009 21:33 - Will RIM Drag Down Stocks, Friday?
On 25 September 2009, the function returns 1, because at 15:14, a news item contains the word 'Buy'.
On 24 September 2009, the function returns 0.
Trading financial instruments, including foreign exchange on margin, carries a high level of risk and is not suitable for all investors. The high degree of leverage can work against you as well as for you. Before deciding to invest in financial instruments or foreign exchange you should carefully consider your investment objectives, level of experience, and risk appetite. The possibility exists that you could sustain a loss of some or all of your initial investment and therefore you should not invest money that you cannot afford to lose. You should be aware of all the risks associated with trading and seek advice from an independent financial advisor if you have any doubts.