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| From | "Lachenbruch, Peter" <Peter.Lachenbruch@oregonstate.edu> |
| To | "'statalist@hsphsun2.harvard.edu'" <statalist@hsphsun2.harvard.edu> |
| Subject | st: RE: RE: write all the p values from correlations into a table |
| Date | Tue, 14 Sep 2010 10:34:47 -0700 |
I strongly disagree with the philosophy of looking at 600 p-values (and most likely picking off the largest ones). This is poor statistics and poor science. Please read something on multiplicity and why this is bad news. A recent paper in the Lancet showed that eating cereal in the first trimester increased the probability of a male baby to 0.55. They had done 262 tests on various diets and found the most significant one. A plot of the p-values (done by a critic of the paper) showed a perfect straight line when comparing the p-values with a line of slope 1. I strongly suggest you abandon this approach. Tony Peter A. Lachenbruch Department of Public Health Oregon State University Corvallis, OR 97330 Phone: 541-737-3832 FAX: 541-737-4001 -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Martin Weiss Sent: Tuesday, September 14, 2010 10:20 AM To: statalist@hsphsun2.harvard.edu Subject: st: RE: write all the p values from correlations into a table <> *********** capt which estout if _rc ssc inst estout sysuse auto, clear qui ds, has(type numeric) qui estpost cor `r(varlist)', mat //show matrix of p-values mat l e(p) *********** HTH Martin -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of helen bian Sent: Dienstag, 14. September 2010 18:17 To: statalist@hsphsun2.harvard.edu Subject: st: write all the p values from correlations into a table Dear All, I want to record the p values only for the correlation between more than 600 variables. It is very difficult to record all the p values by the following command >pwcorr v1 v2, sig Does anyone know how to record it automatically? Any advice will be very much approciated. Many thanks, Helen * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/