anscombe {datana}

Anscombe quartet dataset

Description

A dataset that contains four pairs of columns with the same descriptive statistics; however, there is a difference when representing the points through a graph.

Usage

data(anscombe)

Format

The data frame contains four variables as follows:

X1

Integers values that represent X-axis for Y1, Y2 and Y3 column

Y1

Float values that represent Y-axis for X1 column

Y2

Float values that represent Y-axis for X1 column

Y3

Float values that represent Y-axis for X1 column

X2

Integers values that represent X-axis for Y4 column

Y4

Float values that represent Y-axis for X2 column

Source

Data were assembled by Dr Christian Salas-Eljatib (Santiago, Chile).

References

Anscombe, Francis J. (1973). Graphs in statistical analysis. The American Statistician, 27, 17-21. doi:10.2307/2682899.

Examples

data(anscombe)    
head(anscombe)