Hi,
I am trying to sort out a discrepancy between power calculations results
between me and another statistician. I use R but I am not sure what she
uses. It is on the proportions test and so I have been using
pwr.prop.test. I think I have tracked the problem down to pwr.prop.test
not using the continuity correction for the test (I did this by using
the java applet from
http://stat.ethz.ch/R-manual/R-patched/library/stats/html/power.prop.test.html).
So I was wondering whether:
1) Someone could confirm that pwr.prop.test does not use a continuity
correction in its calculation.
2) Someone could tell me either how to use pwr.prop.test or another
function to get the power of a prop.test with continuity correction.
The reason I want this is that I would normally apply the correction
when I actually used the test.
Many thanks
Dan
--
**************************************************************
Daniel Brewer, Ph.D.
Institute of Cancer Research
Molecular Carcinogenesis
Email: daniel.bre...@icr.ac.uk
**************************************************************
The Institute of Cancer Research: Royal Cancer Hospital, a charitable Company
Limited by Guarantee, Registered in England under Company No. 534147 with its
Registered Office at 123 Old Brompton Road, London SW7 3RP.
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