| data.anscombe {desk} | R Documentation |
Anscombe's Quartet
Description
This data set comprises four individual x-y-data sets which have the same statistical properties (mean, variance, correlation, regression line, etc.), yet are quite different.
Usage
data.anscombe
Format
A data frame of 4 data sets, each with 11 observations of the two variables x and y.
x1 to x4 | x-variables of the four data sets. |
y1 to y4 | y-variables of the four data sets. |
Details
In Auer et al. (2023, Chap. 3) these data are used to illustrate the simple regression model and the importance to visually evaluate datasets before a numerical analysis is performed.
Source
This dataset was manually generated from: Anscombe, F.J. (1973): Graphs in Statistical Analysis. American Statistician, 27(1), 17-21. Also available in the R package datasets.
References
Tufte, E.R. (1989): The Visual Display of Quantitative Information, 13-14. Graphics Press.
Auer, L.v., Hoffmann, S. & Kranz, T. (2023): Ökonometrie - Das R-Arbeitsbuch, 2nd ed., Springer-Gabler (https://www.oekonometrie-lernen.de).