The "+" means the statement is not syntactically complete. Perhaps you have more "(" than ")"?
Also, have you read "the posting guide! http://www.R-project.org/posting-guide.html";? Many people answer their own questions just following that guide.
spencer graves
Edward Sun wrote:
Dear Sir/Madam,
I am using R version 1.8.1. I am doing following tast:
First generate 100 Gaussion(3,1) numbers, then write the likelihood function to estimate the parameters of Gaussian distribution by direct maximizing the likelihood function.
My likelihood function is:
fn<-function(x) (-50*log((sd(x))^2))-50*log(sqrt(2*pi))-(1/2*((mean(x))^2))*(sum((x-(mean(x))^2))
After I input above function, the '' >'' turned to be '' + ''. and it did not work.
I am looking for the help to solve this tast by writting a likelihood function.
Thanks a lot.
Best regards. edward sun
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