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List:       r-help
Subject:    Re: [R] MASS fitdistr()
From:       Bernardo Rangel Tura <tura () centroin ! com ! br>
Date:       2003-11-29 13:39:19
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At 15:49 27-11-2003, you wrote:
> Dear R experts,
> 
> I am trying to use the R MASS library fitdistr() to fit the following
> list:
> 
> k21stsList<-c(0.76697,0.57642,0.75938,0.82616,0.93706,0.77377,0.58923,0.37157,0.6079 \
> 6,1.00070,0.97529,0.62858,0.63504,0.68697,0.61714,0.75227,1.16390,0.66702,0.83578) 
> as follows,
> 
> library(MASS)
> fitdistr(k21stsList, "normal")
> 
> But, I get
> 
> Error in fitdistr(k21stsList, "normal") : 'start' must be a named list

Hi

You donīt put the start list, something like this

fitdistr(k21stsList, "normal",list(mean = 0.5 sd = 0.1))

      mean          sd    
  0.74584591   0.17908744 
 (0.04108548) (0.02904255)




Bernardo Rangel Tura, MD, MSc
National Institute of Cardiology Laranjeiras
Rio de Janeiro Brazil


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