[R] Standard Error

[Mark Miller]

I have worked out that when I fit data I get an estimate and a standard error, 
but all the definitions I can find describe the standard error of a sample as 
the standard deviation over the square root of the sample size, so if I am 
fitting to a log-normal distribution, what is the standard error associated 
with the standard deviation and why is it different from the standard error 
of the mean.

Many thanks
Mark Miller