The data are the lengths of three sides of (hypothetical) right-angled triangles
Usage
data(triangle)
Arguments
Format
A data frame with 20 observations on the following 3 variables.
y
the length of the hypotenuse;
a numeric vector
x1
the length of one side of the triangle;
a numeric vector
x2
the length of the third side of the triangle;
a numeric vector
Details
The data give the three sides of hypothetical right-angled triangles.
The data are randomly generated so that \(y\) is the square root of
\(x_1^2 + x_2^2\),
plus a small amount of error.
The idea is from Gelman and Nolan (2002).
References
The idea is from
Andrew Gelman and Deborah Nolan (2002)
Teaching Statistics: A bag of tricks.
Oxford University Press.