PCA based water quality modelling

This data set contains Matlab codes used to analyze water quality data modeled using PC loading or rotated factor loading (referred to as PCQ-1, PCQ-2, respectively) approach.WQI of the data set was estimated using repeated (1000) random non-overlapping 2 to 5-fold data partitioning adopting either an in-sample (test set) or out-sample (train set) modeling approach.本数据集包含用于分析水质数据的Matlab代码，该水质数据采用主成分载荷（PC loading）或旋转因子载荷（rotated factor loading）方法建模，上述两种方法分别记为PCQ-1与PCQ-2。本数据集的水质指数（Water Quality Index, WQI）通过重复1000次的随机非重叠2至5折数据划分流程进行估算，该划分过程采用样本内（测试集）或样本外（训练集）建模方案。