From richard.turner at imarketresearch.com Fri Mar 9 09:12:30 2018 From: richard.turner at imarketresearch.com (Richard Turner) Date: Thu, 8 Mar 2018 17:12:30 -0500 Subject: [Limdep Nlogit List] Individual level parameters with varying choice sets per respondent Message-ID: Hi All, Is it possible to estimate individual level parameters when there are varying numbers of choice sets across respondents? Can I specify an ID variable in the ;pds command? Would it be the number of choice sets that the respondent saw or also a multiple of the number of alternatives? Best regards, Richard From a.bakhshy at gmail.com Fri Mar 9 19:41:51 2018 From: a.bakhshy at gmail.com (ali bakhshi) Date: Fri, 9 Mar 2018 13:11:51 +0430 Subject: [Limdep Nlogit List] unsubscrib Message-ID: From wgreene at stern.nyu.edu Sat Mar 10 01:38:12 2018 From: wgreene at stern.nyu.edu (William Greene) Date: Fri, 9 Mar 2018 09:38:12 -0500 Subject: [Limdep Nlogit List] Individual level parameters with varying choice sets per respondent In-Reply-To: References: Message-ID: Richard. See chapter N20 of the manual for how to handle different choice set sizes with different numbers of tasks (choice sets). Regards Bill Greene On Thu, Mar 8, 2018 at 5:12 PM, Richard Turner < richard.turner at imarketresearch.com> wrote: > Hi All, > > Is it possible to estimate individual level parameters when there are > varying numbers of choice sets across respondents? > > Can I specify an ID variable in the ;pds command? Would it be the number of > choice sets that the respondent saw or also a multiple of the number of > alternatives? > > Best regards, > > Richard > _______________________________________________ > Limdep site list > Limdep at mailman.sydney.edu.au > http://limdep.itls.usyd.edu.au > > -- William Greene Department of Economics Stern School of Business, New York University 44 West 4 St., 7-90 New York, NY, 10012 URL: https://protect-au.mimecast.com/s/ossIC71ZgLtyDno1i8rzeh?domain=people.stern.nyu.edu Email: wgreene at stern.nyu.edu Ph. +1.212.998.0876 Editor in Chief: Journal of Productivity Analysis Editor in Chief: Foundations and Trends in Econometrics Associate Editor: Economics Letters Associate Editor: Journal of Business and Economic Statistics Associate Editor: Journal of Choice Modeling From richard.turner at imarketresearch.com Mon Mar 12 11:20:42 2018 From: richard.turner at imarketresearch.com (Richard Turner) Date: Sun, 11 Mar 2018 20:20:42 -0400 Subject: [Limdep Nlogit List] Indicating varying number of choice sets Message-ID: Greetings, When estimating random parameter or latent class choice models, how can one indicate that there are varying numbers of choice exercises per individual? Forgive me if I've overlooked how to accomplish this in the NLOGIT documentation, but I cannot find it anywhere. Thanks, Richard From david.hensher at sydney.edu.au Mon Mar 12 11:24:55 2018 From: david.hensher at sydney.edu.au (David Hensher) Date: Mon, 12 Mar 2018 00:24:55 +0000 Subject: [Limdep Nlogit List] Indicating varying number of choice sets In-Reply-To: References: Message-ID: <5AA5C8D7.2080006@sydney.edu.au> You use ;pds= If it varies it must be in data and then the new variable (varz) is used in ;pds= David On 12/03/2018 11:20 AM, Richard Turner wrote: > Greetings, > > When estimating random parameter or latent class choice models, how can one > indicate that there are varying numbers of choice exercises per individual? > Forgive me if I've overlooked how to accomplish this in the NLOGIT > documentation, but I cannot find it anywhere. > > Thanks, > > Richard > _______________________________________________ > Limdep site list > Limdep at mailman.sydney.edu.au > http://limdep.itls.usyd.edu.au > > > -- DAVID HENSHER FASSA, PhD | Professor and Founding Director Institute of Transport and Logistics Studies | The University of Sydney Business School THE UNIVERSITY OF SYDNEY Rm 201, Building H73 | The University of Sydney | NSW | 2006 Street Address: 378 Abercrombie St, Darlington NSW 2008 T +61 2 9114 1871 | F +61 2 9114 1863 | M +61 418 433 057 E David.Hensher at sydney.edu.au | W sydney.edu.au/business/itls Celebrating 25 years of ITLS: 1991-2016 https://protect-au.mimecast.com/s/62ROClxwB5CkYJR1tGlSmg?domain=youtu.be ERA Rank 5 (Transportation and Freight Services) Co-Founder of the International Conference Series on Competition and Ownership of Land Passenger Transport (The 'Thredbo' Series) https://protect-au.mimecast.com/s/1fOcCmOxDQt6QwypcOETD3?domain=thredbo-conference-series.org Join the ITLS group on LinkedIn Second edition of Applied Choice Analysis now available at www.cambridge.org/9781107465923 CRICOS 00026A This email plus any attachments to it are confidential. Any unauthorised use is strictly prohibited. If you receive this email in error, please delete it and any attachments. Please think of our environment and only print this e-mail if necessary. From david.hensher at sydney.edu.au Mon Mar 12 11:24:55 2018 From: david.hensher at sydney.edu.au (David Hensher) Date: Mon, 12 Mar 2018 00:24:55 +0000 Subject: [Limdep Nlogit List] Indicating varying number of choice sets In-Reply-To: References: Message-ID: <5AA5C8D7.2080006@sydney.edu.au> You use ;pds= If it varies it must be in data and then the new variable (varz) is used in ;pds= David On 12/03/2018 11:20 AM, Richard Turner wrote: > Greetings, > > When estimating random parameter or latent class choice models, how can one > indicate that there are varying numbers of choice exercises per individual? > Forgive me if I've overlooked how to accomplish this in the NLOGIT > documentation, but I cannot find it anywhere. > > Thanks, > > Richard > _______________________________________________ > Limdep site list > Limdep at mailman.sydney.edu.au > http://limdep.itls.usyd.edu.au > > > -- DAVID HENSHER FASSA, PhD | Professor and Founding Director Institute of Transport and Logistics Studies | The University of Sydney Business School THE UNIVERSITY OF SYDNEY Rm 201, Building H73 | The University of Sydney | NSW | 2006 Street Address: 378 Abercrombie St, Darlington NSW 2008 T +61 2 9114 1871 | F +61 2 9114 1863 | M +61 418 433 057 E David.Hensher at sydney.edu.au | W sydney.edu.au/business/itls Celebrating 25 years of ITLS: 1991-2016 https://protect-au.mimecast.com/s/Xtc4C0YZWVF4AOzAfwKoit?domain=youtu.be ERA Rank 5 (Transportation and Freight Services) Co-Founder of the International Conference Series on Competition and Ownership of Land Passenger Transport (The 'Thredbo' Series) https://protect-au.mimecast.com/s/jEFPCgZowLHNzXJztocF1b?domain=thredbo-conference-series.org Join the ITLS group on LinkedIn Second edition of Applied Choice Analysis now available at www.cambridge.org/9781107465923 CRICOS 00026A This email plus any attachments to it are confidential. Any unauthorised use is strictly prohibited. If you receive this email in error, please delete it and any attachments. Please think of our environment and only print this e-mail if necessary. From john.c.whitehead at gmail.com Mon Mar 12 11:28:21 2018 From: john.c.whitehead at gmail.com (John C. Whitehead) Date: Mon, 12 Mar 2018 00:28:21 +0000 Subject: [Limdep Nlogit List] Indicating varying number of choice sets In-Reply-To: References: Message-ID: Define a variable ni for the number of observations for each individual. Then add ;pds=ni to your code instead of say, pds=3, when you have 3 observations per respondent. On Sun, Mar 11, 2018 at 8:21 PM Richard Turner < richard.turner at imarketresearch.com> wrote: > Greetings, > > When estimating random parameter or latent class choice models, how can one > indicate that there are varying numbers of choice exercises per individual? > Forgive me if I've overlooked how to accomplish this in the NLOGIT > documentation, but I cannot find it anywhere. > > Thanks, > > Richard > _______________________________________________ > Limdep site list > Limdep at mailman.sydney.edu.au > http://limdep.itls.usyd.edu.au > > From john.c.whitehead at gmail.com Mon Mar 12 11:28:21 2018 From: john.c.whitehead at gmail.com (John C. Whitehead) Date: Mon, 12 Mar 2018 00:28:21 +0000 Subject: [Limdep Nlogit List] Indicating varying number of choice sets In-Reply-To: References: Message-ID: Define a variable ni for the number of observations for each individual. Then add ;pds=ni to your code instead of say, pds=3, when you have 3 observations per respondent. On Sun, Mar 11, 2018 at 8:21 PM Richard Turner < richard.turner at imarketresearch.com> wrote: > Greetings, > > When estimating random parameter or latent class choice models, how can one > indicate that there are varying numbers of choice exercises per individual? > Forgive me if I've overlooked how to accomplish this in the NLOGIT > documentation, but I cannot find it anywhere. > > Thanks, > > Richard > _______________________________________________ > Limdep site list > Limdep at mailman.sydney.edu.au > http://limdep.itls.usyd.edu.au > >