在写毕业论文，是eviews新手，进行面板数据模型选择F检验的时候遇到问题了，混合模型能做出结果，变截距也行，到了变系数模型就出不来结果，显示 near singular matrix 是什么原因？该怎么处理呢？谢谢大家~~附上我做出来混合模型和变截距模型的结果，大家能帮我看看数据是不是有什么问题。
C | -0.734112 | 0.817530 | -0.897964 | 0.3708 |
FHB? | -0.274816 | 0.084412 | -3.255672 | 0.0014 |
DA? | 1.527193 | 0.858497 | 1.778915 | 0.0775 |
SUB? | 0.311193 | 0.127873 | 2.433617 | 0.0163 |
CR1? | 0.200913 | 0.113925 | 1.763560 | 0.0801 |
CR5? | -0.256002 | 0.119865 | -2.135749 | 0.0345 |
GYG? | -0.026353 | 0.083230 | -0.316629 | 0.7520 |
SIZE? | -0.015514 | 0.006593 | -2.352947 | 0.0201 |
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R-squared | 0.201135 | Mean dependent var | 0.317602 |
Adjusted R-squared | 0.159403 | S.D. dependent var | 0.135384 |
S.E. of regression | 0.124125 | Akaike info criterion | -1.280359 |
Sum squared resid | 2.064555 | Schwarz criterion | -1.113834 |
Log likelihood | 98.90551 | Hannan-Quinn criter. | -1.212690 |
F-statistic | 4.819708 | Durbin-Watson stat | 1.667319 |
Prob(F-statistic) | 0.000072 | | | |
C | -1.351263 | 1.390339 | -0.971895 | 0.3331 | FHB? | -0.314175 | 0.094794 | -3.314300 | 0.0012 | DA? | 2.612439 | 1.271112 | 2.055239 | 0.0420 | SUB? | 0.408102 | 0.198035 | 2.060759 | 0.0415 | CR1? | 0.421635 | 0.347926 | 1.211852 | 0.2280 | CR5? | -0.156328 | 0.307083 | -0.509072 | 0.6116 | GYG? | 0.285178 | 0.248577 | 1.147239 | 0.2536 | SIZE? | -0.040879 | 0.015334 | -2.665817 | 0.0087 |
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| | | | | | | | | | | | | | | Cross-section fixed (dummy variables) | [size=9.0000pt] | | | | | | | | | | | R-squared | 0.290585 | Mean dependent var | 0.317602 | Adjusted R-squared | 0.159433 | S.D. dependent var | 0.135384 | S.E. of regression | 0.124123 | Akaike info criterion | -1.187844 | Sum squared resid | 1.833383 | Schwarz criterion | -0.709083 | Log likelihood | 107.3369 | Hannan-Quinn criter. | -0.993295 | F-statistic | 2.215632 | Durbin-Watson stat | 1.923900 | Prob(F-statistic) | 0.003410 | | | | | | | | | | | | | |
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