怎么解释这个格兰杰因果关系检验结果
Pairwise Granger Causality Tests
Date: 04/05/14 Time: 12:00
Sample: 1 168
Lags: 1
Null Hypothesis: Obs F-Statistic Probability
SOYBEAN_P does not Granger Cause SOYBEAN_F 167 1.29218 0.25730
SOYBEAN_F does not Granger Cause SOYBEAN_P 3.04578 0.08282
解答:SOYBEAN_F是SOYBEAN_P的格兰杰原因,SOYBEAN_P不是SOYBEAN_F的格兰杰原因
格兰杰检验的原假设是 否定的,即某个因素不是另一个因素格兰杰原因 希望可以帮到你
两假设P值都没拒绝原假设啊,那应是:SOYBEAN_F不是SOYBEAN_P的格兰杰原因,SOYBEAN_P不是SOYBEAN_F的格兰杰原因。不知对否
两假设P值都没拒绝原假设啊,那应是:SOYBEAN_F不是SOYBEAN_P的格兰杰原因,SOYBEAN_P不是SOYBEAN_F的格兰杰原因。学习中
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怎样看格兰杰因果检验结果
哪位高手帮忙看看下面的格兰杰因果检验的结果,多谢!!!
Pairwise Granger Causality Tests
Date: 02/26/12 Time: 12:05
Sample: 1999M05 2011M12
Lags: 2
Null Hypothesis: Obs F-Statistic Probability
DCPI does not Granger Cause DCGPI 149 8.22863 0.00041
DCGPI does not Granger Cause DCPI 13.2365 5.3E-06
DPPI does not Granger Cause DCGPI 149 1.40317 0.24916
DCGPI does not Granger Cause DPPI 15.1216 1.1E-06
DRMPI does not Granger Cause DCGPI 149 0.66834 0.51414
DCGPI does not Granger Cause DRMPI 23.3483 1.6E-09
DPPI does not Granger Cause DCPI 149 2.70309 0.07040
DCPI does not Granger Cause DPPI 3.33213 0.03849
DRMPI does not Granger Cause DCPI 149 3.37124 0.03708
DCPI does not Granger Cause DRMPI 4.16369 0.01746
DRMPI does not Granger Cause DPPI 149 1.40373 0.24902
DPPI does not Granger Cause DRMPI 10.5066 5.5E-05
解答:
DCPI does not Granger Cause DCGPI 149 8.22863 0.00041
DCGPI does not Granger Cause DCPI 13.2365 5.3E-06
看P值0.00041<0.010,否定DCPI does not Granger Cause DCGPI 即DCPI是DCGPI 的原因。
请问格兰杰因果关系如何检验
Null Hypothesis: Obs F-Statistic Probability
LNW does not Granger Cause LNCONS 9 1.92071 0.26021
LNCONS does not Granger Cause LNW 0.46121 0.66033
LNY does not Granger Cause LNCONS 9 4.68918 0.08940
LNCONS does not Granger Cause LNY 0.45422 0.66410
LNY does not Granger Cause LNW 9 0.07064 0.93293
LNW does not Granger Cause LNY 4.93222 0.08324
还有obs只有9个,是不是不能进行格兰杰因果检验,谢谢各位朋友
精彩解答:是granger检验,不过检验的观察值太少了。检验的结果可以看出: 第一行,检验原假设:LNW不是引起LNCONS的原因 检验的F值为1.92071 临界值p为0.26021 0.26021>0.05,这说明了在5%的置信水平下检验的原假设是以比较大的概率发生的,所以可以认为接受原假设
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