[R] Maximum likelihood estimation in R
Edward Sun
edwardweisun at hotmail.com
Sun Feb 15 21:48:37 CET 2004
Dear Sir,
I am a new user of R and I am doing a tast, which is: find the maximum
likelihood estimate of the parameter of Gaussian distribution for generated
100 numbers by using >x=rnorm(100, mean=3, sd=1).
I tried to use following Maximum Likelihood function
>fn<-function(x)
(-50*log((sd(x))^2))-50*log(sqrt(2*pi))-(1/2*((mean(x))^2))*(sum((x-(mean(x))^2)),
but it did not work.
I am looking for the complete syntax to finish my target task.
Thanks for your help.
Best regards.
Edward Sun
Germany
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