[R] Fwd: Timebased predictions in postgresql.
nicolai at catpipe.net
Thu Aug 12 21:52:17 CEST 2004
Hi r-people :)
I'm sorry to disturb but I must admit that I know amazingly little about R and
similar statistics-packages/languages and I'm kind of lost on where to start.
I'm currently working on a datacollection framework for postgresql (The db
doesn't really matter except that I hope to use PL/R) and I would like to be
able to predict future values preferable 1 day or more ahead. The highest
resolution on the historic data is 4 minutes but I'm already resampling that
to whatever I need, so if it would be better to use 30min or other
reasolution (because of performance) it would be perfectly ok.
The types of statistics in the database is typically network io/ cpu usage,
temperatur, etc. and I will rarely have holes in the history.
Can anyone tell me how (or give me a hint) I can predict traffic or similar
maybe one or more days ahead when I have the data xxdays back ? (And many how
many days / which interval would be optimal for best performance/precision).
You can also tell me it's impossible, but I think it could be really cool to
present graphs of expected cpu-load or network IO to our users.
Can it be done in R (and PL/R) ?
catpipe Systems Aps
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