Figure 2
From: Analysis of oligonucleotide array experiments with repeated measures using mixed models
Histograms of Simulated F statistics. The histograms of the F statistics from F[3, 4] (grey in A, B), simulated data with same covariance structure among individuals (cyan, case I in A) or unequal variance for subjects from controls and AD patients (blue, case II in B). Case I has slightly larger tail than random generated F values, and the right tail of case II were thicker than both of cases above.