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同一个自变量下多个因变量数据拟合最合理趋势线。
可以考虑： 1. 将每次的y平均，然后回归 2. 就x重复6次，变成6×18长度，y变成线性的，然后回归。 3. 单独回归，系数平均 不知道哪个更合理
3 years ago | 0
| accepted
