Hi John,
Aren't they in the component 'model' of the fitted object?
##
> options(contrasts = c("contr.treatment", "contr.poly"))
> house.plr <- polr(Sat ~ Infl + Type + Cont, weights = Freq, data = housing)
> head(house.plr$model)
Sat Infl Type Cont (weights)
1 Low Low Tower Low 21
2 Medium Low Tower Low 21
3 High Low Tower Low 28
4 Low Medium Tower Low 34
5 Medium Medium Tower Low 22
6 High Medium Tower Low 36
> house.plr$model$'(weights)'
[1] 21 21 28 34 22 36 10 11 36 61 23 17 43 35 40 26 18 54 13 9 10 8
8 12 6 7 9 18 6 7 15 13 13 7 5 11 14 19 37 17 23 40 3 5 23
78 46 43 48 45 86
[52] 15 25 62 20 23 20 10 22 24 7 10 21 57 23 13 31 21 13 5 6 13
##
Regards,
Yihui
--
Yihui Xie <[EMAIL PROTECTED]>
Phone: +86-(0)10-82509086 Fax: +86-(0)10-82509086
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Homepage: http://www.yihui.name
School of Statistics, Room 1037, Mingde Main Building,
Renmin University of China, Beijing, 100872, China
On Sun, Sep 28, 2008 at 3:00 AM, John Fox <[EMAIL PROTECTED]> wrote:
> Dear list members,
>
> The polr() function in the MASS package takes an optional weights argument
> for case weights. Is there any way to retrieve the case weights from the
> fitted "polr" object? Examining both the object and the code, I don't see
> how this can be done, but perhaps I've missed something.
>
> Any help would be appreciated.
>
> John
>
> ------------------------------
> John Fox, Professor
> Department of Sociology
> McMaster University
> Hamilton, Ontario, Canada
> web: socserv.mcmaster.ca/jfox
>
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