[R] Contingency-Coefficient, Variance

[Christoph Buser]

Hi

You can easily implement it by:

Mag. Ferri Leberl writes:
 > Dear Everybody!
 > Excuse me for this newbie-questions, but I have not found answers to these 
 > Question:
 > 
 > - Is there a command calculating the variance if the whole group is known 
 > (thus dividing by n instead of n-1)?

var(x)*(n-1)/n

 > 
 > - Which is the command to calculate the
 > - contingency-coefficient?

Have a look at ?chisq.test
There you can calculate and extract the chi-square statistic and
then it is easy to program the needed formula.
Please note that there is an argument "exact" in
chisq.test(). You can set it on FALSE if you do not want to
apply Yates continuity correction.

Regards,

Christoph Buser

--------------------------------------------------------------
Christoph Buser <buser at stat.math.ethz.ch>
Seminar fuer Statistik, LEO C13
ETH (Federal Inst. Technology)	8092 Zurich	 SWITZERLAND
phone: x-41-44-632-4673		fax: 632-1228
http://stat.ethz.ch/~buser/
--------------------------------------------------------------


 > 
 > Thank you in advance.
 > Mag. Ferri Leberl
 > 
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