Supplemental File S2

Results of orthogonal projections to latent structures discriminant analysis (OPLS-DA) of milk composition and properties of samples from all months, as influenced by farming system (conventional vs. organic). A: Cross-validated score values, each dot representing one farm tank milk sample. Predictive (related to response of organic or conventional farming) scores on x-axis, orthogonal (not related to response) on y-axis. Symbols indicate class belongings. B: OPLS-DA loadings, each dot represents one milk quality variable. Predictive loadings on x-axis, orthogonal on y-axis. The black dots represent response classes, gray dots represent milk parameters.

本数据集为不同养殖模式（常规养殖与有机养殖）影响下，全月度采集的乳成分与样品属性的正交偏最小二乘判别分析（Orthogonal Projections to Latent Structures Discriminant Analysis，OPLS-DA）结果。
A：图A为交叉验证得分图，每个散点代表一个牧场储奶罐奶样；横轴为与有机/常规养殖响应相关的预测得分，纵轴为与响应无关的正交得分，符号用于区分样本所属类别。
B：图B为OPLS-DA载荷图，每个散点代表一项乳品质变量；横轴为预测载荷，纵轴为正交载荷；黑色散点代表响应类别，灰色散点代表乳品质参数。