Hi, I'm trying fitdistr but I'm getting some errors> fitdistr(rnorm(100),"Normal")Error in fitdistr(rnorm(100), "Normal") : 'start' must be a named list> fitdistr(rnorm(100),"Normal",start=list(mean=0,sd=1))Error in fitdistr(rnorm(100), "Normal", start = list(mean = 0, sd = 1)) : supplying pars for the Normal is not supported What is the problem here ? Am I doing something wrong ? Regards EJ
Which version of R and the MASS library? It worked for me just
now with R 1.8.1:
> library(MASS)
> fitdistr(rnorm(100),"Normal",start=list(mean=0,sd=1))
mean sd
0.03760724 0.97053743
(0.09705374) (0.06862975)
hope this helps. spencer graves
Ernesto Jardim wrote:
>Hi,
>
>I'm trying fitdistr but I'm getting some errors
>
>
>
>>fitdistr(rnorm(100),"Normal")
>>
>>
>Error in fitdistr(rnorm(100), "Normal") : 'start' must be
a named list
>
>
>>fitdistr(rnorm(100),"Normal",start=list(mean=0,sd=1))
>>
>>
>Error in fitdistr(rnorm(100), "Normal", start = list(mean = 0, sd
= 1))
>:
> supplying pars for the Normal is not supported
>
>
>What is the problem here ? Am I doing something wrong ?
>
>Regards
>
>EJ
>
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>R-help at stat.math.ethz.ch mailing list
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>PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html
>
>
Which version of MASS (not that you gave me any credit)? This works in the current 7.1-14. On Tue, 17 Feb 2004, Ernesto Jardim wrote:> I'm trying fitdistr but I'm getting some errors > > > fitdistr(rnorm(100),"Normal") > Error in fitdistr(rnorm(100), "Normal") : 'start' must be a named list > > fitdistr(rnorm(100),"Normal",start=list(mean=0,sd=1)) > Error in fitdistr(rnorm(100), "Normal", start = list(mean = 0, sd = 1)) > : > supplying pars for the Normal is not supported > > > What is the problem here ? Am I doing something wrong ?-- Brian D. Ripley, ripley at stats.ox.ac.uk Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595