Displaying 3 results from an estimated 3 matches for "phd_stud".
2009 Apr 13
2
joint estimation of two poisson equations
...data = d)
summary(system_out)
-----------------------------------------------------------------
# ERROR FROM REPLACING "sur" WITH "poisson"
Error in switch(mode(x), `NULL` = structure(NULL, class = "formula"), :
invalid formula
--
Owen Powell
http://center.uvt.nl/phd_stud/powell
2009 Nov 27
1
problem with "dynformula" from "plm" package [RE-POST]
...1) + lag(log(emp), 2) + lag(log(wage), 2) +
lag(log(wage), 3) + diff(capital, 2) + diff(capital, 3)
And indeed, when I try to run a regression using that formula, it
appears to not contain any lags or logs (output below).
Any ideas? Thanks in advance,
~Owen
--
Owen Powell
http://center.uvt.nl/phd_stud/powell
R> library("plm")
R> data("EmplUK", package="plm")
R> a =
dynformula(emp~wage+capital,log=list(capital=FALSE,TRUE),lag=list(emp=2,c(2,3)),diff=list(FALSE,capital=TRUE))
R> testModel <- plm(formula = a,data=EmplUK,model="within")
[1] 103...
2009 Nov 27
3
problem with "dynformula" from "plm" package
...1) + lag(log(emp), 2) + lag(log(wage), 2) +
lag(log(wage), 3) + diff(capital, 2) + diff(capital, 3)
And indeed, when I try to run a regression using that formula, it appears to
not contain any lags or logs (output below).
Any ideas? Thanks in advance,
~Owen
--
Owen Powell
http://center.uvt.nl/phd_stud/powell
R> library("plm")
R> data("EmplUK", package="plm")
R> a =
dynformula(emp~wage+capital,log=list(capital=FALSE,TRUE),lag=list(emp=2,c(2,3)),diff=list(FALSE,capital=TRUE))
R> testModel <- plm(formula = a,data=EmplUK,model="within")
[1] 103...