Fig. 8From: On the inconsistency of ℓ 1-penalised sparse precision matrix estimationTesting the condition of Assumption 1 of [22] in Eq. (3) on real gene expression data showing the fraction of random subsets of d genes that fulfil the requirement and various relaxations. The condition (3) requires γ<1, but the figure shows results also for larger γ cutoffs, denoted by c Back to article page