[Limdep Nlogit List] majority of data now skipped in MNL model
Jason Ong
doctorjasonong at gmail.com
Wed Jan 8 18:28:50 AEDT 2020
kindly ignore the email I just sent
It's rather strange... I just restarted my NLOGIT and tried to run the
models again and it was back to normal (i.e. used all my data)
sorry to trouble you.
*Jason Ong*
Twitter: @DrJasonJOng
PhD, MMed, MBBS, FAChSHM, FRACGP
Sexual Health Physician, Melbourne Sexual Health Centre, Alfred Health
Associate Professor (Hon), London School of Hygiene and Tropical Medicine,
UK
Central Clinical School, Monash University, Australia
Melbourne School of Population and Global Health, University of Melbourne,
Australia
Associate Editor, Sexually Transmitted Infections
Special Issues Editor, Sexual Health
Board Director, ASHM (www.ashm.org.au)
https://protect-au.mimecast.com/s/2SbtCmOxDQtgwnLxIGQghp?domain=lshtm.ac.uk
https://protect-au.mimecast.com/s/xRzPCnxyErCP0opEiJjYT6?domain=researchgate.net
If you are more fortunate than others, build a longer table, not a taller
fence.
On Wed, Jan 8, 2020 at 6:19 PM Jason Ong <doctorjasonong at gmail.com> wrote:
> hi,
>
> I am not sure what happened to my dataset
> A few months ago when I ran it, it used all my data points
> but when I tried to run an MNL model again it came up with this error
>
> +------------------------------------------------------+
> |WARNING: Bad observations were found in the sample. |
> |Found 2616 bad observations among 2808 individuals. |
> |You can use ;CheckData to get a list of these points. |
> +------------------------------------------------------+
>
> when I used ;CheckData it came up with a long list (pasting the last few)
> - but I am not sure what the es.') means?
>
> 8368 2790 es.')
> 8371 2791 es.')
> 8374 2792 es.')
> 8377 2793 es.')
> 8380 2794 es.')
> 8383 2795 es.')
> 8386 2796 es.')
> 8389 2797 es.')
> 8392 2798 es.')
> 8395 2799 es.')
> 8398 2800 es.')
> 8401 2801 es.')
> 8404 2802 es.')
> 8407 2803 es.')
> 8410 2804 es.')
> 8413 2805 es.')
> 8416 2806 es.')
> 8419 2807 es.')
> 8422 2808 es.')
>
> Below is my MNL code and my database attached
> hope you can shed some light on this mystery...
> thanks.
>
> NLOGIT
> ; Lhs = choicev, cset, altij
> ; Choices = A,B,C
> ?;CheckData
> ; Model:
> U(A,B)=cost1*cost1+cost2*cost2+cost3*cost3+who*who+swab*swab
>
> +extra1*extra1+extra2*extra2+extra3*extra3+supp1*supp1+supp2*supp2+supp3*supp3
> +loc1*loc1+loc2*loc2+loc3*loc3+loc4*loc4+loc5*loc5+loc6*loc6+loc7*loc7/
> U(C)=neither$
>
>
> *Jason Ong*
> Twitter: @DrJasonJOng
> PhD, MMed, MBBS, FAChSHM, FRACGP
>
> Sexual Health Physician, Melbourne Sexual Health Centre, Alfred Health
> Associate Professor (Hon), London School of Hygiene and Tropical Medicine,
> UK
> Central Clinical School, Monash University, Australia
> Melbourne School of Population and Global Health, University of Melbourne,
> Australia
> Associate Editor, Sexually Transmitted Infections
> Special Issues Editor, Sexual Health
> Board Director, ASHM (www.ashm.org.au)
> https://protect-au.mimecast.com/s/2SbtCmOxDQtgwnLxIGQghp?domain=lshtm.ac.uk
> https://protect-au.mimecast.com/s/xRzPCnxyErCP0opEiJjYT6?domain=researchgate.net
>
> If you are more fortunate than others, build a longer table, not a taller
> fence.
>
>
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