Simulated dataset with heteroscedastic errors

This dataset is generated from the model \(y_i = 1 + 2 x_i + \varepsilon_i\), where \(\varepsilon_i \sim N(0, (0.5 + 2 x_i)^2)\). A fixed seed ensures repeatable values.

Usage

data(hetero_data)

Format

A data frame with 100 rows and 2 variables:

x

predictor

y

response

Source

Simulated with set.seed(42); runif() and rnorm().

Examples

data(hetero_data)
plot(hetero_data$x, hetero_data$y)