Thanks John for your reply. However still not clear how I should proceed.
My goal is to generate all possible contingency tables. Basically I want to see the distribution of Chi-squared Statistic under independence (NULL).
So I was thinking if I can generate all possible permutation of integer numbers having sum equal to (8 + 10 + 12 + 6) = 36. Is there any R function to do that?
Thanks and regards, On 01-12-2012 18:39, John Kane wrote:
Are you basically asking for all possible permutations of the table? If so see ?permn in the combinat package. John Kane Kingston ON Canada-----Original Message----- From: bogaso.christo...@gmail.com Sent: Sat, 01 Dec 2012 18:10:15 +0545 To: r-help@r-project.org Subject: [R] Getting all possible contingency tables Hello all, Let say I have 2-way contingency table: Tab <- matrix(c(8, 10, 12, 6), nr = 2) and the Chi-squared test could not reject the independence: > chisq.test(Tab) Pearson's Chi-squared test with Yates' continuity correction data: Tab X-squared = 1.0125, df = 1, p-value = 0.3143 However I want to get all possible contingency tables under this independence scenario (one of them would obviously be the given table as, we could not reject the independence), and for each such table I want to calculate the Ch-sq statistic. Can somebody help me how to generate all such tables? Thanks and regards, ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.____________________________________________________________ FREE ONLINE PHOTOSHARING - Share your photos online with your friends and family! Visit http://www.inbox.com/photosharing to find out more!
______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
