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...lucky if anyone out there has some good hints what to consider concerning memory management. I'm not sure about the best methods reading such huge files into R. for the moment I spilt the whole table into readable parts stick them together in R again. Any hints welcome. Dubravko Dolic Statistical Analyst Email: dubravko.dolic@komdat.com [[alternative HTML version deleted]]

...But as there are so many possibilities with times on R (namely using the POSIX classes) I want to be shure if there is no "standard" approach to handle such time related problems (note that the date is irrelevant to my problem). have a goof Easter holiday All the best Dubravko Dolic Dubravko Dolic <http://www.dolic.de/pagedd.html> -- Statistik -- Tel: +49 (0)89-55 27 44 - 4630 Fax: +49 (0)89-55 27 44 - 2463 Email: dubravko.dolic@komdat.com -------------------------------------------- Komdat GmbH Nymphenburger Straße 86 / TH 3...

...length(unique(userid)) will take (almost) no time... So I think the other way round will serve best: Do everything in R and avoid using SQL on the database... -----Urspr??ngliche Nachricht----- Von: bogdan romocea [mailto:br44114 at yahoo.com] Gesendet: Montag, 6. Juni 2005 16:27 An: Dubravko Dolic Cc: r-help at stat.math.ethz.ch Betreff: RE: [R] Reading huge chunks of data from MySQL into Windows R You don't say what you want to do with the data, how many columns you have etc. However, I would suggest proceeding in this order: 1. Avoid R; do everything in MySQL. 2. Use random samples. 3...

...20 12 5 2 9 6 9 12 7 12 0 8 3 0 9 18 0 10 5 1 11 7 1 12 0 1 13 2 0 So Columns V1 and V2 are the sum of A und B while n has its old value. Notice that there are different rows in n of A and B. I don't have a clue how to start here. Any hint is welcome. Thanks Dubravko Dolic Munich Germany

...(Mb) max used (Mb) Ncells 217234 5.9 500000 13.4 2800 500000 13.4 Vcells 87472 0.7 157650064 1202.8 3072 196695437 1500.7 Now I'm at a loss. Maybe anyone could give me a hint where I should read further or which Information can take me any further Dubravko Dolic Statistical Analyst Tel:?? ?????? +49 (0)89-55 27 44 - 4630 Fax: ?????? +49 (0)89-55 27 44 - 2463 Email: dubravko.dolic at komdat.com Komdat GmbH Nymphenburger Stra??e 86 80636 M??nchen --------------------------------------------- ONLINE MARKETING THAT WORKS ---------------------------------------...

...ay: e.g. the query "select * from orders where userid = 14929859848712890325" selects the correct case but in R the userid is changed to 14929859848712890368. What happened here? This transformation is true for all fields of that type... Thank You for any help Dubravko Dolic Statistical Analyst Tel: +49 (0)89-55 27 44 - 4630 Fax: +49 (0)89-55 27 44 - 2463 Email: dubravko.dolic@komdat.com Komdat GmbH Nymphenburger Straße 86 80636 München --------------------------------------------- ONLINE MARKETING THAT WORKS ---------------------------------------------...

I have some time series data like 01/02/1990 0.531 0.479 01/03/1990 0.510 0.522 01/06/1990 0.602 0.604 there is no weekends and holidays. how do I graph them in a single plot that the x-axis is the dates and the y-axis is the time series? Thank you Regards, Jincai Jiang (Office) 212-761-3984 -------------------------------------------------------- This is not an offer (or solicitation