自动控制元件实验一最小二乘法拟合 用Eviews软件.doc

1 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(LR ??) -.04 -.02 .00 .02 .04 0 10 20 30 40 50 123456 ResidualActualFitted Dependent Variable: U Method: Least Squares Date: 05/21/10 Time: 10:08 Sample: 16 Included observations: 6 Coefficient Std. Error t-Statistic Prob. N -05 C - - R-squared Mean dependent var Adjusted R-squared . dependent var . of regression Akaike info criterion - Sum squared resid Schwarz criterion - Log likelihood Hannan-Quinn criter. - F-statistic 1716866. Durbin-Watson stat Prob(F-statistic) 2 (二) 5 LkR ? ? mand: ========================= LS UNC Estimation Equation: ========================= U= C(1)*N + C(2) Substituted Coefficients: ========================= U= *N - -.15 -.10 -.05 .00 .05 .10 .15 0 10 20 30 40 12345 ResidualActualFitted Dependent Variable: U Method: Least Squares Date: 05/21/10 Time: 10:20 Sample (adjusted): 15 Included observations: 5 after adjustments Coefficient Std. Error t-Statistic Prob. 3 N C - - R-squared Mean dependent var Adjusted R-squared . dependent var . of regression Akaike info criterion - Sum squared resid Schwarz criterion - Log likelihood Hannan-Quinn criter. - F-statistic Durbin-Watson stat Prob(F-statistic) (三) 1 LkR ? ? mand: ========================= LS NUC Estimation Equation: ========================= N= C(1)*U + C(2) Substituted Coefficients: ========================= N= *U + 4 -12 -8 -4 0 4 8 400 800 1,200 1,600 2,000 12345 ResidualActualFitted Dependent Variable: N Method: Least Squares Date: 05/21/10 Time: 10:24 Sample (adjusted): 15 Included observations: 5 after adjustments Coefficient Std