[R] question on package plm

2013-03-11 Thread Millo Giovanni
T) From: Wei-han Liu To: "r-help@r-project.org" Subject: [R] question on package plm Message-ID: <1362703843.84094.yahoomail...@web163805.mail.gq1.yahoo.com> Content-Type: text/plain  Hi R users:  I am using the plm package for linear panel data analysis but encountered the fo

[R] question on package plm

2013-03-07 Thread Wei-han Liu
 Hi R users:  I am using the plm package for linear panel data analysis but encountered the following message when I try plm function to estimate an random model with individual effect.  data.re.ind <- plm(X.RETURN. ~ IOB + IOBS,data=E,model="random",effect = "individual")  Error in swar(objec