Re: [R] package for rank ordered logit

2010-07-26 Thread Peter Dalgaard
zachmohr wrote:
 You may want to try a multinomial logit, mlogit{mlogit}.  Hope this helps.

Please do not guess (Tal too) if you don't know the answer, you'll be
Googled forever... The question is about something like Stata's rologit,
which is a rather different beast.

-pd


 
 On Fri, Jul 16, 2010 at 11:42 AM, Suresh Singh-2 [via R] 
 ml-node+2291644-2038081369-246...@n4.nabble.comml-node%2b2291644-2038081369-246...@n4.nabble.com
 wrote:
 
 My understanding is that polr will do ordered logit but I am not sure if it

 is also suited for rank ordered logit (or is there no such distinction)

 I am thinking of following two situations

 1. there is an ordered response (say small,medium,large coffee) and each
 individual selects one of these options. the order is predetermined i.e we
 know which one is small, medium or large and interested in knowing which
 option is selected. in this case each choice is independent because
 different individuals choose them
 2. an individual ranks some or all the options (say three different types
 of
 coffee). We do not know apriori what the order is beforehand - these ranks
 are dependent because the same individual selects them

 I am calling the 1st situation - ordered logit and 2nd situation - rank
 ordered logit.

 Are these equivalent situations and is polr suited for both?

 Suresh


 On Fri, Jul 16, 2010 at 11:41 AM, Tal Galili [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=2291644i=0
 wrote:

 Did you try:
 library(MASS)
 ?polr

 ?


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 On Fri, Jul 16, 2010 at 6:15 PM, Suresh Singh [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=2291644i=2
 wrote:
 Is there a package in R that can run rank-ordered logit?

 Thanks,
 Suresh

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Re: [R] package for rank ordered logit

2010-07-25 Thread zachmohr

You may want to try a multinomial logit, mlogit{mlogit}.  Hope this helps.

On Fri, Jul 16, 2010 at 11:42 AM, Suresh Singh-2 [via R] 
ml-node+2291644-2038081369-246...@n4.nabble.comml-node%2b2291644-2038081369-246...@n4.nabble.com
 wrote:

 My understanding is that polr will do ordered logit but I am not sure if it

 is also suited for rank ordered logit (or is there no such distinction)

 I am thinking of following two situations

 1. there is an ordered response (say small,medium,large coffee) and each
 individual selects one of these options. the order is predetermined i.e we
 know which one is small, medium or large and interested in knowing which
 option is selected. in this case each choice is independent because
 different individuals choose them
 2. an individual ranks some or all the options (say three different types
 of
 coffee). We do not know apriori what the order is beforehand - these ranks
 are dependent because the same individual selects them

 I am calling the 1st situation - ordered logit and 2nd situation - rank
 ordered logit.

 Are these equivalent situations and is polr suited for both?

 Suresh


 On Fri, Jul 16, 2010 at 11:41 AM, Tal Galili [hidden 
 email]http://user/SendEmail.jtp?type=nodenode=2291644i=0
 wrote:

  Did you try:
  library(MASS)
  ?polr
 
  ?
 
 
  Contact
  Details:---
  Contact me: [hidden 
  email]http://user/SendEmail.jtp?type=nodenode=2291644i=1|  
  972-52-7275845
  Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |

  www.r-statistics.com (English)
 
 --


 
 
 
 
  On Fri, Jul 16, 2010 at 6:15 PM, Suresh Singh [hidden 
  email]http://user/SendEmail.jtp?type=nodenode=2291644i=2
 wrote:
 
  Is there a package in R that can run rank-ordered logit?
 
  Thanks,
  Suresh
 
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Re: [R] package for rank ordered logit

2010-07-16 Thread Tal Galili
Did you try:
library(MASS)
?polr


?


Contact
Details:---
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On Fri, Jul 16, 2010 at 6:15 PM, Suresh Singh singh@osu.edu wrote:

 Is there a package in R that can run rank-ordered logit?

 Thanks,
 Suresh

 __
 R-help@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.


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Re: [R] package for rank ordered logit

2010-07-16 Thread Suresh Singh
My understanding is that polr will do ordered logit but I am not sure if it
is also suited for rank ordered logit (or is there no such distinction)

I am thinking of following two situations

1. there is an ordered response (say small,medium,large coffee) and each
individual selects one of these options. the order is predetermined i.e we
know which one is small, medium or large and interested in knowing which
option is selected. in this case each choice is independent because
different individuals choose them
2. an individual ranks some or all the options (say three different types of
coffee). We do not know apriori what the order is beforehand - these ranks
are dependent because the same individual selects them

I am calling the 1st situation - ordered logit and 2nd situation - rank
ordered logit.

Are these equivalent situations and is polr suited for both?

Suresh


On Fri, Jul 16, 2010 at 11:41 AM, Tal Galili tal.gal...@gmail.com wrote:
 Did you try:
 library(MASS)
 ?polr

 ?


 Contact
 Details:---
 Contact me: tal.gal...@gmail.com |  972-52-7275845
 Read me: www.talgalili.com (Hebrew) | www.biostatistics.co.il (Hebrew) |
 www.r-statistics.com (English)

--




 On Fri, Jul 16, 2010 at 6:15 PM, Suresh Singh singh@osu.edu wrote:

 Is there a package in R that can run rank-ordered logit?

 Thanks,
 Suresh

 __
 R-help@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.



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