[R] how can i deal with multiple response data?

[Prof Brian Ripley]

You asked this yesterday: repeatedly asking the same question is just 
annoying to the readership.  Please see the posting guide and try to 
improve a question that receives no response.

You have not said what analysis you intend to do with such data.  Unless 
you do we cannot really help you more than answer your actual question 
(see below).  We cannot even guess for you as we don't know the purpose of 
the study.

On Fri, 24 Jun 2005, ronggui wrote:

> in a questionair i ask:
> Which of the following software packages do you use for data analysis?
> 1 	R
> 2 	S-Plus
> 3 	SAS
> 4 	SPSS
> 5 	Stata
> 6 	others
> (In this question, respondents are asked to mark the name of each package they use. Respondents may mark any number of packages)
>
> and code the answer as:
>                q1_R   q1_SPlus     q1_SAS    q1_SPSS   q1_Stata  q1_others
>        1.         1          0          0          0          0          1
>        2.         1          1          0          0          1          0
>        3.         0          0          0          0          1          0
>        4.         0          0          1          0          0          0
>        5.         0          0          1          0          0          1
>
>
> my question: is there any function  dealing with this data?

Yes.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595