[R] random number generation

Peter Flom flom at ndri.org
Tue Oct 28 14:21:40 CET 2003


These conditions are mutually exclusive for a lot of reasons, therefore,
there's no way to generate such data.  Briefly, the normal distribution
is fully specified by the mean and variance, the other conditions are
superfluous, and, in some cases, impossible

Please tell us what you are actually trying to do and why you need to
do it, and perhaps we can help.   

Peter

Peter L. Flom, PhD
Assistant Director, Statistics and Data Analysis Core
Center for Drug Use and HIV Research
National Development and Research Institutes
71 W. 23rd St
www.peterflom.com
New York, NY 10010
(212) 845-4485 (voice)
(917) 438-0894 (fax)



>>> nmi13 <NMI13 at student.canterbury.ac.nz> 10/28/2003 3:38:22 AM >>>
Hi every one,

I am trying to generate a normally distributed random variable with the

following descriptive statistics,

min=1, max=99, variance=125, mean=38.32, 1st quartile=38, median=40,
3rd 
quartile=40, skewness=-0.274.

I know the "rnorm" will allow me to simulate random numbers with mean
38.32 
and Sd=11.18(sqrt(125)). But I need to have the above mentioned
descriptive 
statistics for the data that I generate.

I would be thankful to anyone who can help me with this problem.

Regards
Murthy

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