Here's some code to implement the cheese data table using the proportinal
odds model given in Generalised Linear Models by McCullagh & Nelder (Ch5).
You will have to adapt this to handle your case data - but i'll give you
something to go on.
#### cheese
library(MASS)
options(contrasts = c("contr.treatment", "contr.poly"))
y = c(0,0, 1, 7, 8,8,19, 8,1, 6,9,12,11, 7,6, 1, 0,0, 1,1, 6, 8,23,7, 5,
1,0, 0,0, 0, 1, 3,7,14,16,11)
p
c(1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9,1,2,3,4,5,6,7,8,9)
x1
c(1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)
x2
c(0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0)
x3
c(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0)
ord.rp = ordered(p)
fit0.polr = polr(ord.rp ~ 1, weights=y)
fit1.polr = polr(ord.rp ~ x1 + x2+x3, weights=y)
summary(fit1.polr)
anova(fit0.polr,fit1.polr)
gerard
yongkook Kwon
<yongkookkwon at gma
il.com> To
Sent by: R-help at r-project.org
r-help-bounces at r- cc
project.org
Subject
[R] how can I ordinal regression??
03/06/2009 08:10
What function and package I use to conduct ordinal regression??
My data is composed 2colums and 180rows.
The first colum indicate level of mass and second colum is intensity.
So, I want to calculate how much intensity are related mass.
[[alternative HTML version deleted]]
______________________________________________
R-help at r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
**********************************************************************************
The information transmitted is intended only for the person or entity to which
it is addressed and may contain confidential and/or privileged material. Any
review, retransmission, dissemination or other use of, or taking of any action
in reliance upon, this information by persons or entities other than the
intended recipient is prohibited. If you received this in error, please contact
the sender and delete the material from any computer. It is the policy of the
Department of Justice, Equality and Law Reform and the Agencies and Offices
using its IT services to disallow the sending of offensive material.
Should you consider that the material contained in this message is offensive you
should contact the sender immediately and also mailminder[at]justice.ie.
Is le haghaidh an duine n? an eintitis ar a bhfuil s? d?rithe, agus le haghaidh
an duine n? an eintitis sin amh?in, a bhearta?tear an fhaisn?is a tarchuireadh
agus f?adfaidh s? go bhfuil ?bhar faoi r?n agus/n? faoi phribhl?id inti.
Toirmisctear aon athbhreithni?, atarchur n? leathadh a dh?anamh ar an bhfaisn?is
seo, aon ?s?id eile a bhaint aisti n? aon ghn?omh a dh?anamh ar a hiontaoibh, ag
daoine n? ag eintitis seachas an faighteoir beartaithe. M? fuair t? ? seo tr?
dhearmad, t?igh i dteagmh?il leis an seolt?ir, le do thoil, agus scrios an
t-?bhar as aon r?omhaire. Is ? beartas na Roinne Dl? agus Cirt, Comhionannais
agus Athch?irithe Dl?, agus na nOif?g? agus na nGn?omhaireachta? a ?s?ideann
seirbh?s? TF na Roinne, seoladh ?bhair chol?il a dh?chead?.
M?s rud ? go measann t? gur ?bhar col?il at? san ?bhar at? sa teachtaireacht seo
is ceart duit dul i dteagmh?il leis an seolt?ir l?ithreach agus le
mailminder[ag]justice.ie chomh maith.
***********************************************************************************