Hi, as concern R & datamining & large databases you can see those resources:
Diego Kuonen, Introduction au data mining avec R : vers la reconqu�te du `knowledge discovery in databases' par les statisticiens. Bulletin of the Swiss Statistical Society, 40:3-7, 2001. http://www.statoo.com/en/publications/2001.R.SSS.40/ Diego Kuonen and Reinhard Furrer, Data mining avec R dans un monde libre. Flash Informatique Sp�cial �t�, pages 45-50, sep 2001. http://sawww.epfl.ch/SIC/SA/publications/FI01/fi-sp-1/sp-1-page45.html Brian D. Ripley, Datamining: Large Databases and Methods, in Proceedings of �useR! 2004 - The R User Conference�, maggio 2004 http://www.ci.tuwien.ac.at/Conferences/useR-2004/Keynotes/Ripley.pdf Brian D. Ripley, Using Databases with R, R News, Gennaio 2001, pagg. 18-20 http://cran.r-project.org/doc/Rnews/Rnews_2001-1.pdf B. D. Ripley, R. M. Ripley, Applications of R Clients and Servers in Proceedings of the Distributed Statistical Computing 2001 Workshop, 2001, Vienna University of Technology. http://www.ci.tuwien.ac.at/Conferences/DSC-2001/Proceedings/Ripley.pdf Torsten Hothorn, David A. James, Brian D. Ripley, R/S Interfaces to Databases in Proceedings of the Distributed Statistical Computing 2001 Workshop, 2001,Vienna University of Technology. http://www.ci.tuwien.ac.at/Conferences/DSC-2001/Proceedings/HothornJamesRipley.pdf Lu�s Torgo, Data Mining with R. Learning by case studies, Maggio 2003 http://www.liacc.up.pt/~ltorgo/DataMiningWithR/ Best Vito You wrote: Hi, how can I import really big plain text data files (several GB) from an ERP-System (SAP-Tables) to R? The Header of these files are always similar, for example: Tabelle: T009 Angezeigte Felder: 7 von 7 Feststehende F�hrungsspalten: 2 Listbreite 0250 ---------------------------------------------------------------------- |X|MANDT|PERIV|XKALE|XJABH|ANZBP|ANZSP|LTEXT | ---------------------------------------------------------------------- |X|001 |01 |X | |012 |02 |ABC | |X|001 |V9 | | |012 |04 |Okt. - Sep., 4 Sonderperioden | |X|001 |WK | |X |053 |00 |Kalenderwochen | ---------------------------------------------------------------------- (including the first 5 rows in each downloaded table, row # 4 =field names, length of 1 row > 1023 bytes, count of fields > 256, size = several GB, count records = several million) What is an appropriate way to read such tables in? Greetings Stefan P.S. I am a beginner with R. Until now I have used ACL (http://www.acl.com) for data mining purposes and I'm doing now my first try with R. Yes, I have [X] Read R Data Import/Export [X] Read Using R for Data Analysis [X] Read Simple R [X] Read Manuals [X] Read read.table() and scan() command ===== Diventare costruttori di soluzioni "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/cat_palese.shtml ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
