请问要怎么看这些系数分别对应什么变量?(交换了解释变量的顺序后得到的结果是一样的)
RXridge: Estimated Sigma = .26651703
RXridge: Uncorrelated Components... Number of obs = 0
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lngdp | Coef. Std. Err. t P>|t| [95% Conf. Interval]
-------------+----------------------------------------------------------------
c1 | .4412746 .0238739 18.48 0.000 .3917631 .4907862
c2 | .2641687 .1050735 2.51 0.020 .0462596 .4820777
c3 | -.2715657 .1688716 -1.61 0.122 -.6217839 .0786525
c4 | .6044493 .2444066 2.47 0.022 .097581 1.111318
c5 | -.6265204 .52029 -1.20 0.241 -1.705536 .452495
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