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Re: st: Multiple Response Analisys
maybe you can see http://www.stata.com/support/faqs/data/multresp.html
======= 2004-03-21 03:19:35 您在来信中写道：=======
>I have a problem on analizing a multiple response variable of a
>It consists in a variable with hundreds of possible responses, and
>each one of them assumes an alfanumeric code. Now, I have the same
>variables in numeric codes, if it helps for something.
>The big problem is that there were some subjects that
>answered more than one response up to the number of 6 responses for
>the same variable.
>So, now I have a database with 6 variables for the same question in 6
>diferent colums (J02, J03, J04, J05, J06 and J07).
>If there was just a few possible codes, I could make a few dummies for each
>code and analize them separately, but as there are hundreds of
>them, it is impossible to me to analize them as dummies variables for each
>When I try to get the frequencies of those codes I only know how to get
>the frequencies of each colum, using the svy commands, but have no
>idea on how to have all of them analized at the same time.
>As I have each one of the codes listed on any of the 6 colums depending on the
>order of response, I will lose data if I analise each columm separated.
>In SPSS I know what I could do to avoid this problem. I would make a Multiple Response Set,
>grouping all the colums in a set that would be analized at the same
>time to calculate the frequencies. But I have no idea on how to do
>the same thing with Stata.
>If someone know how to group sets of variables to be
>analized together, please help me.
>Thanks on advance,
>Americo F. Pelicioni
>S鉶 Paulo - Brazil
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