Nothing
sim <-
function(
b0 = 3, b1 = 5, sigma = 2,
x = rep(1:5, each = 4) # 4 observations at each of 5 values
){
e <- rnorm(length(x), sd = sigma)
y <- b0 + b1 * x + e
model <- lm(y ~ x)
ci <- confint(model, 2)
dimnames(ci)[[2]] <- c("lo", "hi") # provide nicer names
ci
}
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