Hi Experts,
I am creating a model of (at least) one financial market and need to store a history of the date/times and values at those times.
So my question is: "What is the best way to store this kind of information?"
The values will be doubles, and there may be varying number of data points per day.
I will need to perform varying analyses of the data, and naturally, create various charts of the data.
TIA, jazzle
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hmm, good thought - not something I'd considered.
I haven't yet used a DB in any Java programming - any recommendations on what to use? (good documentation a def' req')
Open-Source preferred, but to be used in a commercial app, so license must allow this.
however, to do any of the numerical processing (trend spotting for instance) wouldn't I need to copy the data into a Java format?
Still open to other format suggestions BTW.
I don't have any real data as yet, but it will be very basic.
A time-date and a double value representing a price in Euro.
The date needn't be more precise than a particular minute of the day (probably an hour is precise enough, possibly just a day).
I was going to keep the price as a double.
The processing will be intended to predict possible future prices. (So there will be other data created/imported.)
I'm starting to think that a database is the right way to go since I realised I will have various data for each time-point, past and future.
Though actually, it may be complicated by the fact that some data will be daily, some may be weekly, etc.
i.e. the granularity may vary.
(have you noticed I'm thinking aloud here?)
perhaps the values should actually be matched to time-periods.
(argh)
It looks like I may be able to use a data format* from the charting package** I'll be using.
I'm not sure how to deal with this question, can you advise?
(NB: I will not be giving points to any further participants, unless something amazingly useful is said.)
* The cunningly named 'TimeSeries'
** jfreechart, www.jfree.org
Business Accounts
Answer for Membership
by: CEHJPosted on 2005-07-05 at 02:06:39ID: 14366895
In a database?