The variance explained by the eigenvectors in reconstructed BLOSUM matrices.

The fraction of variance in an original BLOSUM matrix explained by reconstruction carried out with the eigenvectors of BLOSUM100 matrix. The number of eigenvectors varied between 0 (the reconstruction using the non-specific G-matrix only) and 5.

本数据集描述了原始BLOSUM矩阵（Blocks Substitution Matrix）的方差中，由基于BLOSUM100矩阵的特征向量所完成的重构所解释的占比。所用特征向量的数量取值范围为0（此时仅使用非特异性G矩阵进行重构）至5。