Dennis Lee Bieber wrote:
On Tue, 14 Oct 2008 09:10:14 -0400, "Daniel Malter" <[EMAIL PROTECTED]>
declaimed the following in gmane.comp.lang.r.general:
Other than that I agree with Duncan, your teacher is being paid for helping
you with these very basic problems.
"Me three"... Though I would like to point out that the attached
data file does NOT seem to even have an "area" -- It looks to be a
collection of mix formulations for grades of glass... So even if one
were to attempt solve your homework, you failed to supply anything
usable.
wdata <- read.table("e:\\userdata\\dennis lee bieber\\my documents\\my
downloads\\glassclir5310.txt")
wdata
V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11
1 ID refindex Na Mg Al Si K Ca Ba Fe Class
2 1 1.52101 13.64 4.49 1.1 71.78 0.06 8.75 0 0 1
3 2 1.51761 13.89 3.6 1.36 72.73 0.48 7.83 0 0 1
4 3 1.51618 13.53 3.55 1.54 72.99 0.39 7.78 0 0 1
This looks like the rgl dataset from MASS with a few modifications ...
(coding of RI, coding of Class). This dataset is of course _very well_
analysed in Venables & Ripley 2002. Modern Applied Statistics with S
(Springer)
I think too many people are looking for an easy ride here,
Richard
--
Dr Richard Rowe
Zoology & Tropical Ecology
School of Marine & Tropical Biology
James Cook University
Townsville 4811
AUSTRALIA
ph +61 7 47 81 4851
fax +61 7 47 25 1570
JCU has CRICOS Provider Code 00117J
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