27 lines
707 B
R
Executable File
27 lines
707 B
R
Executable File
# Plot an affine model
|
|
n <- 250
|
|
sd <- 0.05
|
|
epsilon <- rnorm(n, mean = 0, sd = 2)
|
|
beta0 <- 1.25
|
|
beta1 <- 4
|
|
linear_model <- function(x) {
|
|
return(beta0 + beta1*x)
|
|
}
|
|
x <- runif(n, min=0, max=1)
|
|
y <- linear_model(x) + epsilon
|
|
|
|
pdf("figures/plots/linear_regression_linear.pdf")
|
|
plot(x, y, col="#5654fa", type="p", pch=20, xlab="x", ylab="y")
|
|
abline(a = beta0, b = beta1, col="red")
|
|
dev.off()
|
|
|
|
|
|
non_linear_model <- function(x) {
|
|
return(beta0 + beta1 * exp(2*x))
|
|
}
|
|
non_linear_y <- non_linear_model(x) + epsilon
|
|
pdf("figures/plots/linear_regression_non_linear.pdf")
|
|
plot(x, non_linear_y, col="#5654fa", type="p", pch=20, xlab="x", ylab="z")
|
|
curve(non_linear_model, from=0, to=1, add=T, col="red")
|
|
dev.off()
|