search for: pfem

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2011 Nov 21
1
Problems using log() in a plm() regression.
hey guys I have a panel data set that i want to perform some regressions on. I am using the /plm/ package. I defined a model in the following way: PWBw.pool <- plm(*PWB* ~ log(*I_EQON*) + log(*RD*) + ... + *PAGRI*, data = pfem, na.action=na.exclude, model="pooling") When i run this it gives the following error (the error remains when i use other model = "" specifications like "within" or "random"): /Fehler in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : NA/N...
2011 Nov 23
0
R: Problems using log() in a plm() regression.
...77.post at n4.nabble.com> Content-Type: text/plain; charset=us-ascii hey guys I have a panel data set that i want to perform some regressions on. I am using the /plm/ package. I defined a model in the following way: PWBw.pool <- plm(*PWB* ~ log(*I_EQON*) + log(*RD*) + ... + *PAGRI*, data = pfem, na.action=na.exclude, model="pooling") When i run this it gives the following error (the error remains when i use other model = "" specifications like "within" or "random"): /Fehler in lm.fit(x, y, offset = offset, singular.ok = singular.ok, ...) : NA/N...