【摘要】 用投影寻踪回归技术，对棉花高产栽培二次通用旋转试验的二次项回归系数ｂｊｊ＞０的“无效”试验数据进行建模和仿真研究，寻找出内在的客观规律，使“无效”试验数据变成了有用的数据。更多还原

【Abstract】 The model of the experiment data of the quadratic-common-rotating experiment of cotton high yield cultivation was built and simulated by the projection pursuit regression. The inherent objective law was found by conducting the model, and made the invalid data (quadratic coefficient bjj>0) was made into the valid data.更多还原