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Fig. 2 | BioData Mining

Fig. 2

From: Principal component gene set enrichment (PCGSE)

Fig. 2

Simulation model. Variances and loadings for the principal components a 200-dimensional population covariance matrix, Σ, and the sample covariance matrix estimated from n = 75 independent observations of the random vector xMV N(0,Σ) where Σ is generated according to the model outlined in Section “Benchmark PC gene set testing method”. Variances for the first ten population PCs are shown in plot (a) and loadings for the first two population PCs are shown in plots (c) and (e). Plots b, d and f show the corresponding variances and loadings for the sample PCs of a single simulated dataset

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