R help - Jan 2009 - Help with normal distribution in random samples...

Hi!!!

First time 'R' user looking for a little assistance.  Here is what I
have so
far:

practice1 = matrix ((runif(5000, min =0, max = 12)), 100)

which is creating 50 samples, for 100 cases, distributed between 0-12.  What
I would like is to be able to set the mean and SD so that the data is
normally distributed around lets say 7.  Any help I can get with achieving
that goal would be greatly appreciated!!!

-Dan
-- 
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?rnorm

On Wed, Jan 28, 2009 at 4:04 PM, Sea Captain 1779 <dbowen at measinc.com>
wrote:
>
> Hi!!!
>
> First time 'R' user looking for a little assistance.  Here is what
I have so
> far:
>
> practice1 = matrix ((runif(5000, min =0, max = 12)), 100)
>
> which is creating 50 samples, for 100 cases, distributed between 0-12. 
What
> I would like is to be able to set the mean and SD so that the data is
> normally distributed around lets say 7.  Any help I can get with achieving
> that goal would be greatly appreciated!!!
>
> -Dan
> --
> View this message in context:
http://www.nabble.com/Help-with-normal-distribution-in-random-samples...-tp21713636p21713636.html
> Sent from the R help mailing list archive at Nabble.com.
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>


-- 
Mike Lawrence
Graduate Student
Department of Psychology
Dalhousie University
www.thatmike.com

Looking to arrange a meeting? Check my public calendar:
http://www.thatmike.com/mikes-public-calendar

~ Certainty is folly... I think. ~

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of Sea Captain 1779
> Sent: Wednesday, January 28, 2009 12:04 PM
> To: r-help at r-project.org
> Subject: [R] Help with normal distribution in random samples...
> 
> 
> Hi!!!
> 
> First time 'R' user looking for a little assistance.  Here is 
> what I have so
> far:
> 
> practice1 = matrix ((runif(5000, min =0, max = 12)), 100)
> 
> which is creating 50 samples, for 100 cases, distributed 
> between 0-12.  What
> I would like is to be able to set the mean and SD so that the data is
> normally distributed around lets say 7.  Any help I can get 
> with achieving
> that goal would be greatly appreciated!!!
> 
> -Dan
Use rnorm() instead of runif().

Hope this is helpful,

A different Dan

Daniel J. Nordlund
Washington State Department of Social and Health Services
Planning, Performance, and Accountability
Research and Data Analysis Division
Olympia, WA  98504-5204