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From |
yannan shen <yannan2010@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
st: plot 3 normal distribution on one graph |

Date |
Tue, 6 Nov 2012 01:24:01 -0500 |

Dear statalist, I need to plot three normal distributions on one graph, I want them to be over each other, not side by side. The three distributions are: y1~norm(1, 2) y2~norm (3, 4) y3 is a weighted average of y1 and y2, let's say y3=.5*y1+.5*y2 I found the following code from previous statalist discussion that looks very helpful: /* Plot two normal distributions */ #delimit ; graph twoway (function y=normalden(x,1,2), range(-10 20) lw(medthick)) (function y=normalden(x,5,3), range(-10 20) lw(medthick)), title("Normal-Distribution comparison") xtitle("Normal", size(medlarge)) ytitle("") xlabel(-10(2)20) xscale(lw(medthick)) yscale(lw(medthick)) legend(off) graphregion(fcolor(white)); #delimit cr /* Stata code ends */ However, I copied and pasted the exact code into stata command window and the first line returns an error message "Unknown #command" Why??? I googled the error message but was not able to find a solution. I cleared the program history, closed and reopned stata, and tried on different computers, but was unable to find spot the problem. Can someone please help me? I am using stata IC 12.0 Thank you very much! * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/faqs/resources/statalist-faq/ * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: plot 3 normal distribution on one graph***From:*Phil Clayton <philclayton@internode.on.net>

**Re: st: plot 3 normal distribution on one graph***From:*WEBER Sylvain <sylvain.weber@unine.ch>

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