Re: [R] p values of plor

2013-05-29 Thread Prof Brian Ripley
AIC is a different story. To do hypothesis tests on terms, use anova() or dropterm() (as done in the book): library(MASS) example(polr) dropterm(house.plr, test = "Chisq") Single term deletions Model: Sat ~ Infl + Type + Cont DfAIC LRT Pr(Chi) 3495.1 Infl2 3599.4 108.

Re: [R] p values of plor

2013-05-28 Thread meng
How to get p values from the result then? At 2013-05-28 13:54:27,"David Winsemius" wrote: > >On May 27, 2013, at 7:59 PM, meng wrote: > >> Hi all: >> As to the polr {MASS} function, how to find out p values of every >> parameter? >> >> >>> From the example of R help: >> house.plr <- polr

Re: [R] p values of plor

2013-05-28 Thread David Winsemius
On May 27, 2013, at 11:05 PM, Prof Brian Ripley wrote: > On 28/05/2013 06:54, David Winsemius wrote: >> >> On May 27, 2013, at 7:59 PM, meng wrote: >> >>> Hi all: >>> As to the polr {MASS} function, how to find out p values of every >>> parameter? >>> >>> From the example of R help: >>>

Re: [R] p values of plor

2013-05-27 Thread Prof Brian Ripley
On 28/05/2013 06:54, David Winsemius wrote: On May 27, 2013, at 7:59 PM, meng wrote: Hi all: As to the polr {MASS} function, how to find out p values of every parameter? From the example of R help: house.plr <- polr(Sat ~ Infl + Type + Cont, weights = Freq, data = housing) summary(house.pl

Re: [R] p values of plor

2013-05-27 Thread David Winsemius
On May 27, 2013, at 7:59 PM, meng wrote: Hi all: As to the polr {MASS} function, how to find out p values of every parameter? From the example of R help: house.plr <- polr(Sat ~ Infl + Type + Cont, weights = Freq, data = housing) summary(house.plr) How to find out the p values of hou

[R] p values of plor

2013-05-27 Thread meng
Hi all: As to the polr {MASS} function, how to find out p values of every parameter? >From the example of R help: house.plr <- polr(Sat ~ Infl + Type + Cont, weights = Freq, data = housing) summary(house.plr) How to find out the p values of house.plr? Many thanks. Best. [[alternat