自動控制元件实验一最小二乘法拟合用Eviews软件.doc

最小二乘法拟合 用Eviews软件 永磁式直流测速发电机输出特性 （一）空载输出时() Dependent Variable: U Method: Least Squares Date: 05/21/10 Time: 10:08 Sample: 1 6 Included observations: 6 Coefficient Std. Error t-Statistic Prob.?? N 0.023114 1.76E-05 1310.292 0.0000 C -0.135238 0.022691 -5.959960 0.0040 R-squared 0.999998 ????Mean dependent var 26.49000 Adjusted R-squared 0.999997 ????S.D. dependent var 14.49495 S.E. of regression 0.024736 ????Akaike info criterion -4.299896 Sum squared resid 0.002448 ????Schwarz criterion -4.369309 Log likelihood 14.89969 ????Hannan-Quinn criter. -4.577764 F-statistic 1716866. ????Durbin-Watson stat 3.588539 Prob(F-statistic) 0.000000 Estimation Command: ========================= LS U N C Estimation Equation: ========================= U = C(1)*N + C(2) Substituted Coefficients: ========================= U = 0.0226054147896*N - 0.0226558031521 Dependent Variable: U Method: Least Squares Date: 05/21/10 Time: 10:20 Sample (adjusted): 1 5 Included observations: 5 after adjustments Coefficient Std. Error t-Statistic Prob.?? N 0.022605 0.000102 221.0211 0.0000 C -0.022656 0.111466 -0.203253 0.8519 R-squared 0.999939 ????Mean dependent var 22.42000 Adjusted R-squared 0.999918 ????S.D. dependent var 11.36253 S.E. of regression 0.102815 ????Akaike info criterion -1.422590 Sum squared resid 0.031713 ????Schwarz criterion -1.578815 Log likelihood 5.556475 ????Hannan-Quinn criter. -1.841882 F-statistic 48850.31 ????Durbin-Watson stat 1.987944 Prob(F-statistic) 0.000000 （三） Estimation Command: ========================= LS N U C Estimation Equation: ========================= N = C(1)*U + C(2) Substituted Coefficients: ========================= N = 46.2324101557*U + 10.4795319332 Dependent Variable: N Method: Least Squares Date: 05/21/10 Time: 10:24 Sample (adjusted): 1 5 Inclu