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agri
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,...
2011 Nov 23
0
Error using coeftest() with a heteroskedasticity-consistent estimation of the covar.
...hler in 1 - diaghat : nicht-numerisches Argument f?r bin?ren Operator/
something like: /Error in 1 - diaghat: non-numeric argument for binary
operator/
>
Any ideas what this error is trying to tell me? *GSm_inc.pool * is estimated
like this:
> GSm_inc.pool <- plm(GS ~ log(I_EQON) + ... + PAGRI,
+ data = pmen, na.action=na.exclude, model="pooling")
/summary/(*GSm_in.pool*) works perfectly as well and all the variables are
numeric.
Thanks
Manu
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2011 Nov 23
0
R: Problems using log() in a plm() regression.
...878793485-4091377.post at n4.nabble.com>
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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,...