First of all thanks a lot for your answer.
Now I will try to realize your suggestion.
Greetings
B
Am 21.09.2007 um 11:38 schrieb James Reilly:
>
> If I understand you right, you have several multiple response
> variables (with the responses encoded in numeric strings) and you
> want to see whether these are associated with sex. To tabulate the
> data, I would convert your variables into collections of dummy
> variables using regexpr(), then use table(). You can use a modified
> chi-squared test with a Rao-Scott correction on the resulting
> tables; see Thomas and Decady (2004). Bootstrapping is another
> possible approach.
>
> @article{,
> Author = {Thomas, D. Roland and Decady, Yves J.},
> Journal = {International Journal of Testing},
> Number = {1},
> Pages = {43 - 59},
> Title = {Testing for Association Using Multiple Response Survey
> Data: Approximate Procedures Based on the Rao-Scott Approach.},
> Volume = {4},
> Year = {2004},
> Url=http://search.ebscohost.com/login.aspx?
> direct=true&db=pbh&AN=13663214&site=ehost-live
> }
>
> Hope this helps,
> James
> --
> James Reilly
> Department of Statistics, University of Auckland
> Private Bag 92019, Auckland, New Zealand
>
> On 21/9/07 7:14 AM, Birgit Lemcke wrote:
>> First thanks for your answer.
>> Now I try to explain better:
>> I have species in the rows and morphological attributes in the
>> columns coded by numbers (qualitative variables; nominal and
>> ordinal).
>> In one table for the male plants of every species and in the
>> other table for the female plants of every species. The variables
>> contain every possible occurrence in this species and this gender.
>> I would like to compare every variable between male and female
>> plants for example using a ChiSquare Test.
>> The Null-hypothesis could be: Variable male is equal to variable
>> Female.
>> The question behind all is, if male and female plants in this
>> species are significantly different and which attributes are
>> responsible for this difference.
>> I really hope that this is better understandable. If not please ask.
>> Thanks a million in advance.
>> Greetings
>> Birgit
>
Birgit Lemcke
Institut für Systematische Botanik
Zollikerstrasse 107
CH-8008 Zürich
Switzerland
Ph: +41 (0)44 634 8351
[EMAIL PROTECTED]
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