Question
function(p) {
params[!fixed] <- p
mu <- params[1]
sigma <- params[2]
## Calculate the Normal density
a <- -0.5*length(data)*log(2*pi*sigma^2)
b <- -0.5*sum((data-mu)^2) / (sigma^2)
-(a + b)
}
> ls(environment(nLL))a.
“data” “fixed” “param”
b.
“data” “variable” “params”
c.
“data” “fixed” “params”
d.
“data” “param”
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