Re: st: example about choice experiment datasheet

[elisabetta capobianco <elisabetta.capobianco@gmail.com>]

Thank you Arne, I want to use asclogit and mlogit for my choice modelling.


2012/11/19 Arne Risa Hole <arnehole@gmail.com>:
> Elisabetta
>
> As Jay says the correct data form depends on the estimation command
> you are planning to use, so this is a very important piece of
> information that you haven't given us. You may find the examples in
> http://www.stata-journal.com/article.html?article=st0133 useful.
> Generally speaking the best strategy is to import the data into Stata
> and then use commands like -reshape- to convert the data into the form
> you want, rather than trying to do this in Excel.
>
> Arne
>
>> On 19 November 2012 15:51, elisabetta capobianco
>> <elisabetta.capobianco@gmail.com> wrote:
>>>
>>> Thank you for your answer!
>>> I want to do a mixed logit, but I have found a data set on help file
>>> with just one choice set. I have 16 choice sets and I don't know how
>>> to fil the excel data set.
>>>
>>>
>>>
>>> 2012/11/18 JVerkuilen (Gmail) <jvverkuilen@gmail.com>:
>>> > On Sun, Nov 18, 2012 at 4:11 AM, elisabetta capobianco
>>> > <elisabetta.capobianco@gmail.com> wrote:
>>> >> Hi, I'm new of statalist and stata!
>>> >> I'm working on choice experiment about food preferences in schools.
>>> >> I have 4 alternatives unlabelled, 4 attributes and 4 levels, 130
>>> >> individuals.
>>> >> I have the data base in excel, but before insheet the file in stata
>>> >> i'm not sure that i have put the data in the right mode in the excel
>>> >> file.
>>> >> Have you got an example on a excel datasheet about choice modelling?
>>> >> Just an example to understand how to organize my datasheet.
>>> >
>>> > It depends on what analysis you want to use. -clogit- and procedures
>>> > like it that are using alternative-specific predictors use the same
>>> > basic format, which is specified in the help file. You can see the
>>> > example dataset there. Essentially it is a "long" format like
>>> > person-period in a growth model with time-varying covariates.
>>> > *
>>> > *   For searches and help try:
>>> > *   http://www.stata.com/help.cgi?search
>>> > *   http://www.stata.com/support/faqs/resources/statalist-faq/
>>> > *   http://www.ats.ucla.edu/stat/stata/
>>>
>>>
>>>
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>>
>>
>
> *
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Rispetta l'ambiente: se non ti è necessario, non stampare questa mail



          Le informazioni contenute in questa comunicazione e gli
eventuali documenti allegati

          hanno carattere confidenziale e sono a uso esclusivo del
destinatario. Nel caso

          questa comunicazione Vi sia pervenuta per errore, Vi informo
che la sua diffusione

          e riproduzione è contraria alla legge e prego di darmi
prontamente avviso

          e di cancellare quanto ricevuto. Grazie.

*
*   For searches and help try:
*   http://www.stata.com/help.cgi?search
*   http://www.stata.com/support/faqs/resources/statalist-faq/
*   http://www.ats.ucla.edu/stat/stata/