Re: [R] power analysis is applicable or not

2013-11-12 Thread David Winsemius
ome statsiticians of excelletn repute would say you never have justification to do so regardless of any testing.) -- David. > > Please share your thoughts... > > Thanks > > John > From: Christopher W. Ryan > To: array chip > Sent: Tuesday, November 12, 2013 6:53

Re: [R] power analysis is applicable or not

2013-11-12 Thread array chip
your thoughts... Thanks John From: Christopher W. Ryan Sent: Tuesday, November 12, 2013 6:53 PM Subject: Re: [R] power analysis is applicable or not John-- Well, my simple-minded way of thinking about these issues goes something like this: You want to know if

Re: [R] power analysis is applicable or not

2013-11-12 Thread David Winsemius
On Nov 12, 2013, at 6:10 PM, array chip wrote: > Hi, this is a statistical question rather than a pure R question. I have got > many help from R mailing list in the past, so would like to try here and > appreciate any input: > > I conducted Mantel-Haenszel test to show that the performance of

[R] power analysis is applicable or not

2013-11-12 Thread array chip
Hi, this is a statistical question rather than a pure R question. I have got many help from R mailing list in the past, so would like to try here and appreciate any input: I conducted Mantel-Haenszel test to show that the performance of a diagnostic test did not show heterogeneity among 4 study