Displaying 4 results from an estimated 4 matches for "pagg".
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2004 Oct 12
2
Statistical analysis of a large database
Deall all,
We need to perform a statistical analysis of a large database (40,000 entries with approximately 500 fields in each entry) currently handled in Oracle. The data contains categorical variables only.
At the current stage we suggest classification and clustering analysis.
We are planning to perform the analysis in R and would be very grateful for any
2004 Sep 21
0
S/R and data mining (was can't understand "R")
...an D. Ripley, Datamining: Large Databases and
Methods, in Proceedings of "useR! 2004 - The R User
Conference", maggio 2004 Consultabile all??indirizzo
web:
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
Consultabile all??indirizzo web:
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.
Consultabile all??indirizzo...
2005 Nov 24
2
Chi-squared test
Hello,
I'm trying to calculate a chi-squared test to see if my data are
different from the theoretical distribution or not:
chisq.test(rbind(c(79, 52, 69, 71, 82, 87, 95, 74, 55, 78, 49,
60),c(80,80,80, 80, 80, 80, 80, 80, 80, 80, 80, 80)))
Pearson's Chi-squared test
data: rbind(c(79, 52, 69, 71, 82, 87, 95, 74, 55, 78, 49, 60), c(80,
80, 80, 80, 80, 80, 80, 80, 80, 80, 80,
2004 Oct 26
3
Importing big plain files from ERP-System/Data Mining with R
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