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From | Debs Majumdar <debs_stata@yahoo.com> |
To | "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |
Subject | Re: st: density plots |
Date | Tue, 24 May 2011 14:47:59 -0700 (PDT) |
Hi Maarten, Thank you for your hint. The following worked for me, although not at all elegant. clear set obs 100 gen x = rnormal(60,2) gen y = rnormal(40,5) sample 5 * I basically noted down the 5 random numbers from each distribution from these steps. Then I plotted the graph using the following: graph twoway (function normden(x,63,3), range(25 80)) /// (function normden(x,42,5), range(25 80)) || /// scatteri 0 36.84148 0 44.27059 0 45.92701 0 46.50338 0 44.33455 /// 0 59.50851 0 61.99597 0 68.14662 0 66.76981 0 65.88701 Thanks, Debs ----- Original Message ----- From: Maarten Buis <maartenlbuis@gmail.com> To: statalist@hsphsun2.harvard.edu Cc: Sent: Tuesday, May 24, 2011 10:28 AM Subject: Re: st: density plots On Tue, May 24, 2011 at 6:44 PM, Debs Majumdar <debs_stata@yahoo.com> wrote: > I want is an x axis that ranges from 20 to 90 points and 2 normal curves on it. > > One with mean 60 and standard error 2 and the other one with mean 40 and standard error 5. > > At last, I'd like you to pull some random values from those distributions > and superimpose them, e.g. the numbers 1, 2, 3, ... 10 as symbols > superimposed on top of the normal curves. *--------------------------- begin example --------------------------- clear set obs 100 gen x = rnormal(60,2) gen y = rnormal(40,5) cumul x, gen(cx) cumul y, gen(cy) twoway function y = normal((x - 60)/2), range(20 90) || /// function y = normal((x - 40)/5), range(20 90) || /// scatter cx x || scatter cy y *-------------------------- end example -------------------------------- (For more on examples I sent to the Statalist see: http://www.maartenbuis.nl/example_faq ) Hope this helps, Maarten -------------------------- Maarten L. Buis Institut fuer Soziologie Universitaet Tuebingen Wilhelmstrasse 36 72074 Tuebingen Germany http://www.maartenbuis.nl -------------------------- * * 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/