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From |
Nick Winter <nw53@cornell.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: plotting multiple normal densities |

Date |
Tue, 31 Aug 2004 08:32:14 -0400 |

If you know the mean and standard deviation of each normal curve you want, you can just use -twoway function-. For example, to do two curves, with means 0 and 1, and standard deviations 1 and 3:

. graph twoway function normden(x, 0, 1) , range(-5 5) || ///

function normden(x, 1, 3) , range(-5 5)

--Nick Winter

At 12:59 PM 8/31/2004 +0100, you wrote:

--------------------------------------------------------I have a (mixed logit) model in which the mean and variance of several variables' distributions are estimated. In all cases (so far) these are normally distributed. I want to plot these pdf's, so I use 'drawnorm' to draw from a sample with the required mean and variance. I can then plot these individually using the 'normal' option after 'hist', or using 'kdensity'. However I want to plot >1 of these distributions on the same graph to allow visual comparison. Ideally it would not be a histogram, just the pdf plots. Can anyone advise how this is done? thanks, dan rigby Dr Dan Rigby Environmental Economist School of Economic Studies Manchester University M13 9PL 0161 275 4808 http://les1.man.ac.uk/ses/ * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

Nicholas Winter 607.255.8819 t

Assistant Professor 607.255.4530 f

Department of Government nw53@cornell.edu e

308 White Hall falcon.arts.cornell.edu/nw53 w

Cornell University

Ithaca, NY 14853-4601

*

* For searches and help try:

* http://www.stata.com/support/faqs/res/findit.html

* http://www.stata.com/support/statalist/faq

* http://www.ats.ucla.edu/stat/stata/

**References**:**st: plotting multiple normal densities***From:*"Dan Rigby" <Msrbpdr@fs1.ec.man.ac.uk>

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