[Kde-finance-apps] Brainstorming requirements for an Alkimia Quotes Backend: Feedback/Reality-Check Needed Please :)

[Thomas Baumgart]

Hi all,

on Wednesday 26 May 2010 08:43:44 Brian Cappello wrote:

[...]

>  Meanwhile, TA-Lib provides some 150+ indicators/pattern recognitions
>  specifically designed and tweaked for financial market analysis. (Granted,
>  probably 3/4 of those can be "easily" recreated with basic algebra and
>  simple/exponential moving averages (and/or less commonly statistics stuff)
>  - but, the way I see it, why reinvent the wheel?)

Yep, try to avoid the re-invention path.

> Anyways, between yours and Thomas' input and my now being able to better
> understand the AlkValue class, I think I'm going to try to store prices as
> QList<AlkValue> (as opposed to float[] or double[]).

The container class you use to store the values should be influenced by the 
methods you need to access them. Lists are great to iterate over but have a 
bad performance when you search specific values in them.

> If at some point down
> the road I've learned enough to be able to write code that can detect and
> work with optional dependencies, then maybe I'll consider adding TA-Lib
> support via a "middle man" prices holder class. [Memory just keeps getting
> cheaper, no?] But, in the mean time, it's beginning to seem a little dumb
>  to trade off both convenience and accuracy for the possibility of future
>  laziness :)  [Or maybe I'm missing/don't know something? I know that
>  happens all the time with me... :]

Once we know all the building blocks and see how they fit together we can 
think about packaging and dependencies. Some sort of graphical overview on how 
all this fits together would be a good start (just my 0.02).


-- 

Regards

Thomas Baumgart

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