Re: [R] Fligner-Killeen test on binary data

2016-04-04 Thread Jim Lemon
Hi emeline, I think there may be a minor language problem. If you mean the "variation" rather than the "variance" in survival, you may simply want a test of proportions. Jim On Mon, Apr 4, 2016 at 7:48 PM, emeline mourocq wrote: > Hello, > > > > I investigate survival until the following year (0

Re: [R] Fligner-Killeen test on binary data

2016-04-04 Thread emeline mourocq
] Fligner-Killeen test on binary data That's not an R question but a stats question, but I wouldn't do it. For one thing: The variance of binary data is a function of the mean, so the research question is dubious in the first place. Secondly, the test is based on ranking and comparin

Re: [R] Fligner-Killeen test on binary data

2016-04-04 Thread Bert Gunter
Peter: Bravo! On Mon, Apr 4, 2016 at 10:10 AM, peter dalgaard wrote: > That's not an R question but a stats question, but I wouldn't do it. For one > thing: The variance of binary data is a function of the mean, so the research > question is dubious in the first place. Secondly, the test is ba

Re: [R] Fligner-Killeen test on binary data

2016-04-04 Thread peter dalgaard
That's not an R question but a stats question, but I wouldn't do it. For one thing: The variance of binary data is a function of the mean, so the research question is dubious in the first place. Secondly, the test is based on ranking and comparing absolute differences from the group median, whic

[R] Fligner-Killeen test on binary data

2016-04-04 Thread emeline mourocq
Hello, I investigate survival until the following year (0,1) and I wish to test if the variance in survival for two or more groups are significantly different from each other. I read that the Fligner-Killeen test is a non-parametric test which is very robust against departures from normalit