Non-negative matrix factorization (NMF) has been proposed for multivariatedataanalysis, with non-negativity constraints.
非 负数据处理的一种多元统计分析方法。
2
By using multivariate linear regression analysis, the mathematical model to classify and evaluate reservoir with well logging data was established.
通过多元线性回归分析，建立了用多种测井信息划分、评价储层的数学模型。
3
Methods Univariate analysis and multivariate regression were performed on data of 117 patients with lupus nephritis, with the physicians global assessment of disease activity as the external criteria.