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From | Nikolaos Pandis <npandis@yahoo.com> |
To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
Subject | Re: st: RE: generate graph |
Date | Thu, 3 Nov 2011 00:47:52 -0700 (PDT) |
Phil, That looks great and i can change some of the values to get the desired graph!! Many thanks, Nick From: Philip Ryan <philip.ryan@adelaide.edu.au> To: statalist@hsphsun2.harvard.edu Sent: Thursday, November 3, 2011 9:34 AM Subject: st: RE: generate graph <<>> Something like this (grafting onto -sampsi-) ?: *==== begin code ====* clear tempname temp_ss local sd .75 local pow 0.8 local m1 0.35 local m2 0 quietly { postfile `temp_ss' sample_size alpha using my_ss, replace forvalues alpha = .01(.01).2{ sampsi `m1' `m2', alpha(`alpha') power(`pow') sd(`sd') r(1) post `temp_ss' (r(N_1)) (`alpha') } postclose `temp_ss' } /* now make use of our new data set */ use my_ss list, clean abbrev(16) graph twoway line sample_size alpha, /// ytitle("sample size in each group") xlabel(0(.01).2) /// lwidth(medthick) lcolor(blue) *=== end code === Philip Ryan -----Original Message----- From: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of Nikolaos Pandis Sent: Thursday, 3 November 2011 5:34 PM To: statalist@hsphsun2.harvard.edu Subject: st: generate graph Hi to all. I was wondering if someone could help me generate the following graph: twoway line graph showing on the y-axis: sample size and on the x-axis: p-value. The objective is to show how the p-value decreases (increases) as the sample size increases (decreases) given the same effect size and sd Many thanks, Nick * * 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/