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From |
David Muller <davidmull@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Random draws from multivariate normal not centered at the mean |

Date |
Tue, 15 Feb 2011 12:08:53 +1100 |

Hi Mauro, I'm afraid I don't understand what you're after, and I don't know what you are refer to when you use the term 'centered' if you are not referring to the mean. David On Tue, Feb 15, 2011 at 11:45 AM, Mauro Caselli <m.caselli@unsw.edu.au> wrote: > Unfortunately, that doesn't quite do the job. The means() option tells > the means of the distribution you draw from, which in my previous > example were 4 and 5. But is it possible to draw from that > distribution with mean 4 and 5 a set of numbers that are not centered > around those means? If you input in the means() option the means that > you would like, the draws are from a different distribution and not > from the original one I am interested in. > I hope that this clears what I am trying to do. > > Mauro > > > > On 15 February 2011 11:10, David Muller <davidmull@gmail.com> wrote: >> >> The -means()- option in -drawnorm- does what you require. It's >> documented in -help drawnorm-. >> >> Cheers, >> David >> >> On Tue, Feb 15, 2011 at 10:34 AM, Mauro Caselli <m.caselli@unsw.edu.au> wrote: >> > Dear Stata users, >> > >> > I have the following question: >> > I have a multivariate normal distribution with two variables >> > (therefore I have means and variances of both and the correlation >> > coefficient). I want to draw psuedo-random draws from this >> > distribution and I know that this can be done with the command >> > drawnorm. However, I would like to have draws not centered at the mean >> > of the population but rather at a different value of one of the two >> > variables. >> > So, if the means are 4 for x and 5 for y, for instance I would like to >> > draw ten numbers that give an average of 3 for x and follow the >> > multivariate normal to give the relative values of y. Is this possible >> > with drawnorm? If not, can anyone point me in the right direction? >> > >> > Thank you very much. >> > >> > With best wishes, >> > >> > Mauro >> > >> > >> > >> > -- >> > Mauro Caselli >> > Postdoctoral Research Fellow >> > School of Economics, Room 410 >> > Australian School of Business >> > The University of New South Wales, NSW, 2052 >> > Australia >> > Phone: +61 (0)2 9385 3561 >> > Email: m.caselli@unsw.edu.au >> > * >> > * 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/ > > > > -- > Mauro Caselli > Postdoctoral Research Fellow > School of Economics, Room 410 > Australian School of Business > The University of New South Wales, NSW, 2052 > Australia > Phone: +61 (0)2 9385 3561 > Email: m.caselli@unsw.edu.au > > * > * 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/

**References**:**st: Random draws from multivariate normal not centered at the mean***From:*Mauro Caselli <m.caselli@unsw.edu.au>

**Re: st: Random draws from multivariate normal not centered at the mean***From:*David Muller <davidmull@gmail.com>

**Re: st: Random draws from multivariate normal not centered at the mean***From:*Mauro Caselli <m.caselli@unsw.edu.au>

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