2.3 Why visualize? Anscombes’s quartet (2)

  • Table 2.2 shows results from a linear regression based on Anscombe’s quartet (Anscombe 1973)
Table 2.2: Linear models based on sets of Anscombe’s quartet
Dependent variable:
Set 1 (y1) Set 2 (y2) Set 3 (y3) Set 4 (y4)
x1 0.500*** (0.118)
x2 0.500*** (0.118)
x3 0.500*** (0.118)
x4 0.500*** (0.118)
Constant 3.000** (1.125) 3.001** (1.125) 3.002** (1.124) 3.002** (1.124)
Observations 11 11 11 11
Note: p<0.1; p<0.05; p<0.01

References

Anscombe, F J. 1973. “Graphs in Statistical Analysis.” Am. Stat. 27 (1): 17–21.