Re: How to resample continuosly time data to be represented real time ?
- From: pamela fluente <pamelafluente@xxxxxxxxx>
- Date: Wed, 21 May 2008 10:17:34 -0700 (PDT)
On 21 Mag, 18:54, "Paul E. Black" <p.bl...@xxxxxxx> wrote:
On Wednesday 21 May 2008 06:50, pamela fluente wrote:
...
You might try box plots
http://en.wikipedia.org/wiki/Box_plot
As you get more values, add them to the latest box, and add a new box
when the time span (or count) is done. When your memory is "full",
- Mostra testo tra virgolette -
Thank you Paul,
The representation I have to do is a simple line joining points.
Box plots are interesting but have nothing to to with the chart I
have to make.
Imagine you are receiving the prices of a stock from an imaginary
market - always open - and you
want to provide a representation of such prices by a line passing
between a (continuosly) subsampled
set of observed prices.
At each time T, i need to provide the representation of ALL the
prices observed up to T.
But clearly the chart will be drawn by joining a subset of those
points, and this subset has
maximum size 500.
I am looking for a strategy which allows me to give a good
representation, without using ALL the prices
(which could be millions if T is large) but only a subset of them
(max 500), and such subset must be
possibly recomputed each time a new price arrives.
I hope I am explaining well.
-P
.
- Prev by Date: Funded Ph.D. Position - Formalising the Hardware/Software Interface, TCD, Ireland
- Next by Date: Re: How can I tell if F is a string or if it is a number?
- Previous by thread: Funded Ph.D. Position - Formalising the Hardware/Software Interface, TCD, Ireland
- Next by thread: Quantum algorithm example
- Index(es):
Relevant Pages
|
