R help - Mar 2010 - A complex case of distribution fitting

Dear all,


   I need to fit a set of empirical data to cumulative normal distribution to
   find the mean and sd of theoretical distribution. But I assume that my data
   set  describes only part of PDF, for example, only half of theoretical
   distribution. What function allows it in R? Thank you.

On Mon, 15 Mar 2010, ????? ???????? wrote:
>
>   Dear all,
>
>
>   I need to fit a set of empirical data to cumulative normal distribution
to
>   find the mean and sd of theoretical distribution. But I assume that my
data
>   set  describes only part of PDF, for example, only half of theoretical
>   distribution. What function allows it in R? Thank you.
See

 	Introduction to R
 	Sections 8.1 and 11.7.2

and review the Posting Guide to reframe your question if you need more 
help.

Chuck
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> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
Charles C. Berry                            (858) 534-2098
                                             Dept of Family/Preventive Medicine
E mailto:cberry at tajo.ucsd.edu	            UC San Diego
http://famprevmed.ucsd.edu/faculty/cberry/  La Jolla, San Diego 92093-0901

Are you referring to a truncated normal? 

(http://en.wikipedia.org/wiki/Truncated_normal_distribution)

Glen
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