Fig. 7
Selecting the optimal threshold value based on R 2 and mean degree values when the underlying graph is scale-free. a Hard-thresholding on the sample covariance matrix, S computed from data. b Hard-thresholding on the covariance matrix obtained from the true graph. Green and blue lines indicate R 2 values and mean degree values from the true graph, respectively. c Predictions with hard-thresholding of the sample covariance matrix