Arne.Muller@aventis.com
2003-Dec-03 13:34 UTC
[R] multidimensional Fisher or Chi square test
Hello, Is there a test for independence available based on a multidimensional contingency table? I've about 300 processes, and for each of them I get numbers for failures and successes. I've two or more conditions under which I test these processes. If I had just one process to test I could just perform a fisher or chisquare test on a 2x2 contigency table, like this: for one process: conditionA conditionB ok 20 6 failed 190 156>From the table I can figure out if the outcome (ok/failed) is bound to one ofthe conditions for a process. However, I'd like to know how different the 2 conditions are from each other considering all 300 processes, and I consider the processes to be an additional dimension. My H0 is that both conditions are overall (considering all processes) the same. Could you give me a hint what kind of test of package I should look into? kind regars + thanks for your help, Arne
Dennis Alexis Valin Dittrich
2003-Dec-03 14:46 UTC
[R] multidimensional Fisher or Chi square test
On Wed, 2003-12-03 at 14:34, Arne.Muller at aventis.com wrote:> Is there a test for independence available based on a multidimensional > contingency table? > I've about 300 processes, and for each of them I get numbers for failures and > successes. I've two or more conditions under which I test these processes.You may look for ?mantelhaen.test Dennis