Displaying 3 results from an estimated 3 matches for "aeklund".
Did you mean:
eklund
2006 Sep 12
2
(no subject)
Hi,
I have a problem with aggregate.
x <- aggregate(t1,list(t2,t3,t4), mean)
z<-x[,3]
I want z to be a vector but it is a factor.
I've tried to use as.vector(z,mode="numeric") but then the numbers get
scrambeled.
Any help is appriciated
/anders
2007 May 19
0
(no subject)
Please help,
I have a strange problem. I've got a balanced panel data set. I use dummy
variable regression and I've got results with lm function.
summary(lm(y ~ post + t19961 + t19962 + t19963 + t19964 + t19971 + t19972
+ t19973 + t19974 + t19981+factor( id)))
The problem is that I would like to get my standard errors clustered but
then gets the following error message:
f<-(lm(y ~
2007 May 19
1
clustered standarderrors using design package
Please help,
I have a strange problem. I've got a balanced panel data set. I use dummy
variable regression and I've got results with lm function.
summary(lm(y ~ post + t19961 + t19962 + t19963 + t19964 + t19971 + t19972
+ t19973 + t19974 + t19981+factor( id)))
The problem is that I would like to get my standard errors clustered but
then gets the following error message:
f<-(lm(y ~