logistic回归模型(概率型非线性回归) 1-P β0+β1X1+β2X2+…+βnX < In o0<P≤1 ● log it(P=B0+B1X1+B2X2+…+βnXmLogistic回归模型（概率型非线性回归）   P 0 1X1 2X2 m Xm log it           0 1X1 2X2 m Xm 1 P P ln                  0 P 1 1 P P ln              