J*****n 发帖数: 4859 | 1 【 以下文字转载自 Economics 讨论区 】
发信人: Jadeson (Jadeson), 信区: Economics
标 题: question about regression in plm
发信站: BBS 未名空间站 (Fri Jul 15 08:38:24 2011, 美东)
I am running the panel regression through plm and get following errors:
Error in plm.fit(formula, data, model, effect, random.method, inst.method) :
empty model
What does this error mean? |
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