. xttest2

Correlation matrix of residuals:
         __e1     __e2     __e3
__e1   1.0000
__e2  -0.4943   1.0000
__e3  -0.1340  -0.2600   1.0000
Breusch-Pagan LM test of independence: chi2(3) =     1.319, Pr = 0.7245
Based on 4 complete observations
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这样是存在同期相关还是不存在？看哪个数据？和几进行比较？