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382e
2013 Jan 04
1
plm random effect: the estimated variance of the individual effect is negative
...avid Winsemius <dwinsemius at comcast.net>
To: matteo ognibene <ognibenematteo at hotmail.it>
Cc: "r-help at r-project.org" <r-help at r-project.org>
Subject: Re: [R] plm random effect: the estimated variance of the
individual effect is negative
Message-ID: <D32FDC11-38AE-4AAF-9270-30C791232A24 at comcast.net>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
On Jan 3, 2013, at 8:19 AM, matteo ognibene wrote:
>
> Hi,R 2.15.2 plm() function on Windows 7
> I have a problem with the variance estimation in a random effect model
> I u...