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May I know is there a way to programmatically detect major FOREX news and avoid trading in those time frame?
You need Forexfactory news indicator, "FFCal", that reads data from the website and returns true/false depending on time in minutes before/after major/mid/minor news events. you can download it on fxfactory website, use is rather simple
int result = (int)iCustom(Symbol(),0,"FFCal", (parameters),0,0);
Oh sure, sir, it is!
Let me share an example of such a fully automated / scripted approach:
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What is the preferred way to debug the RED prog lang code? Is there a RED debugger?
There's no debugger AFAIK, but there are functions that can help you with debugging. Take a look at these two articles, they should help you:
https://github.com/red/red/wiki/Debugging
https://github.com/red/red/wiki/How-to-Debug:-A-use-case-by-#DocKimbel
Basically you should use inbuilt functions like probe, ??, dump4, stack/dump or print-symbol.
You can also turn various debugging info with system/preprocessor/debug?: on, system/view/debug?: on and system/reactivity/debug?: on.
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What are the "under the hood" differences? What are the practical differences?
Is there any difference from a users perspective?
I know you could use def to define a method, but could you define a message?
When you send a message to an object, the object will (usually) respond by executing a method with the same name as that message.
You cannot define messages. You just send them.
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I would like to have the data in my site individually. For example: visitant 1 visited page 1, page 2, page 3, at time x,y,z.
How can i get this data in analytics?
You cannot see data for individual visitors in GA (and trying to do so would violate Googles Terms of Service).
You can redirect the tracking calls to your own server and write a script to parse for visitor data, see me answer here:
What would database-schema/database-design look like for google analytics?
(Those methods served for compatibility with the Urchin analytics software - since support for Urchin was dropped it might be that those method will be dropped at some point in the future).
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I need to screenscrape a bunch of pages and store them in a database using ActiveRecord. I messed around using EventMachine and Typhoeus but I get flaky results, mostly mysteriously empty records getting saved.
What's the trick? I had the best results with scraping pages and writing them to disk, then inserting them into the DB, but I'd really like to do it in a single pass.
Is anybody doing this successfully?
My guess is your threads are sharing an AR connection. This will cause problems, and anyway concurrency won't get records into your database any faster. I suggest you download concurrently and insert them in a single thread (like you've been doing.)
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My question is simple, which is the most logical way to learn to handle the concepts of ajax, and that time should be spent on each phase of this new model.
Simplest thing of learning something, is doing something.
First of all, you need to understand the fundametals.. what is AJAX, what was before AJAX and what exact issues does it solve.
After you might consider to learn jQuery AJAX API (http://api.jquery.com/category/ajax/) for client side and PHP (or any other language, that is easy to start) as server. And do some small tasks - as one of AJAX kata, it could be implementation of 'Google word suggest'.
Given you have some web development experience, I suggest the following book - it is really excellent in my opinion:
http://www.amazon.com/Ajax-Definitive-Anthony-Holdener-III/dp/0596528388/ref=pd_sim_b_3