## `simulation.1`
A data frame with 500 observations on the following 12 variables.
x1
a numeric vector
x2
a numeric vector
x3
a numeric vector
x4
a numeric vector
x5
a numeric vector
x6
a numeric vector
x7
a numeric vector
x8
a numeric vector
x9
a numeric vector
x10
a numeric vector
y
a numeric vector
treatment
a numeric vector