自动控制元件实验一最小二乘法拟合用Eviews软件.docx
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自动控制元件实验一最小二乘法拟合用Eviews软件.docx
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自动控制元件实验一最小二乘法拟合用Eviews软件
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(
)
DependentVariable:
U
Method:
LeastSquares
Date:
05/21/10Time:
10:
08
Sample:
16
Includedobservations:
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
Meandependentvar
26.49000
AdjustedR-squared
0.999997
S.D.dependentvar
14.49495
S.E.ofregression
0.024736
Akaikeinfocriterion
-4.299896
Sumsquaredresid
0.002448
Schwarzcriterion
-4.369309
Loglikelihood
14.89969
Hannan-Quinncriter.
-4.577764
F-statistic
1716866.
Durbin-Watsonstat
3.588539
Prob(F-statistic)
0.000000
(2)
EstimationCommand:
=========================
LSUNC
EstimationEquation:
=========================
U=C
(1)*N+C
(2)
SubstitutedCoefficients:
=========================
U=0.0226054147896*N-0.0226558031521
DependentVariable:
U
Method:
LeastSquares
Date:
05/21/10Time:
10:
20
Sample(adjusted):
15
Includedobservations:
5afteradjustments
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
Meandependentvar
22.42000
AdjustedR-squared
0.999918
S.D.dependentvar
11.36253
S.E.ofregression
0.102815
Akaikeinfocriterion
-1.422590
Sumsquaredresid
0.031713
Schwarzcriterion
-1.578815
Loglikelihood
5.556475
Hannan-Quinncriter.
-1.841882
F-statistic
48850.31
Durbin-Watsonstat
1.987944
Prob(F-statistic)
0.000000
(三)
EstimationCommand:
=========================
LSNUC
EstimationEquation:
=========================
N=C
(1)*U+C
(2)
SubstitutedCoefficients:
=========================
N=46.2324101557*U+10.4795319332
DependentVariable:
N
Method:
LeastSquares
Date:
05/21/10Time:
10:
24
Sample(adjusted):
15
Includedobservations:
5afteradjustments
Coefficient
Std.Error
t-Statistic
Prob.
U
46.23241
0.286848
161.1740
0.0000
C
10.47953
6.525673
1.605893
0.2066
R-squared
0.999885
Meandependentvar
968.6000
AdjustedR-squared
0.999846
S.D.dependentvar
485.0826
S.E.ofregression
6.019019
Akaikeinfocriterion
6.716900
Sumsquaredresid
108.6858
Schwarzcriterion
6.560675
Loglikelihood
-14.79225
Hannan-Quinncriter.
6.297608
F-statistic
25977.05
Durbin-Watsonstat
2.951509
Prob(F-statistic)
0.000001
(四)
EstimationCommand:
=========================
LSNUC
EstimationEquation:
=========================
N=C
(1)*U+C
(2)
SubstitutedCoefficients:
=========================
N=50.0626029638*U-18.9498912382
DependentVariable:
N
Method:
LeastSquares
Date:
05/21/10Time:
10:
27
Sample(adjusted):
15
Includedobservations:
5afteradjustments
Coefficient
Std.Error
t-Statistic
Prob.
U
50.06260
0.215491
232.3186
0.0000
C
-18.94989
4.229774
-4.480119
0.0207
R-squared
0.999944
Meandependentvar
900.6000
AdjustedR-squared
0.999926
S.D.dependentvar
387.3717
S.E.ofregression
3.334739
Akaikeinfocriterion
5.535840
Sumsquaredresid
33.36146
Schwarzcriterion
5.379616
Loglikelihood
-11.83960
Hannan-Quinncriter.
5.116548
F-statistic
53971.91
Durbin-Watsonstat
2.629182
Prob(F-statistic)
0.000000
==================================================================================================================================================================
直流力矩电动机机械特性
(一)
EstimationCommand:
=========================
LSN1T1C
EstimationEquation:
=========================
N1=C
(1)*T1+C
(2)
SubstitutedCoefficients:
=========================
N1=-211.415585395*T1+960.365419433
DependentVariable:
N1
Method:
LeastSquares
Date:
05/21/10Time:
10:
36
Sample:
17
Includedobservations:
7
Coefficient
Std.Error
t-Statistic
Prob.
T1
-211.4156
15.50883
-13.63195
0.0000
C
960.3654
37.57400
25.55931
0.0000
R-squared
0.973799
Meandependentvar
530.2857
AdjustedR-squared
0.968558
S.D.dependentvar
304.4907
S.E.ofregression
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