Displaying 3 results from an estimated 3 matches for "fe2".
Did you mean:
fe
2011 Aug 23
1
Efficiency of random and fixed effects estimator
...orm(50),each=2)
happy<-base.happy+1.5*d*obs+rnorm(100)
data<-data.frame(id,obs,d,happy)
# Now run the random and fixed effects models
library(lme4)
reg.re<-lmer(happy~factor(obs)*factor(d)+(1|id))
reg.fe1<-lm(happy~factor(id)+factor(obs)*factor(d))
summary(reg.fe1)
library(plm)
reg.fe2<-plm(happy~factor(obs)*factor(d),index=c('id','obs'),model="within",data=data)
summary(reg.fe2)
I am confused why FE and RE models are virtually equally efficient in this
case. Can somebody lift my confusion?
Thanks much,
Daniel
--
View this message in context:...
2009 Sep 13
2
zoo plot: yearly marks on X-Axis
.... I applied Your script
into mine like this:
-
library(Rdbi)
library(RdbiPgSQL)
conn <- dbConnect(PgSQL(), host="localhost", dbname="BVS",
user="postgres", password = "******")
query_duj_kal <- dbSendQuery(conn, "select zdroj as well, cas as date,
fe2, fe3, mn, nh4, no2, no3, o2, teplota as temperature from analystats
where zdroj like 'Dunaj Kalinkovo' order by date")
watchem_duj_kal <- dbGetResult(query_duj_kal)
date <- (watchem_duj_kal$date)
date_p <- strptime(date, "%m-%d-%Y")
no3 <- (watchem_duj_kal$no3)
n...
2009 Sep 11
1
format (?) problems with data imported from postgres
...library(RdbiPgSQL)
# conn becomes an object which contains the DB connection:
conn <- dbConnect(PgSQL(), host="localhost", dbname="BVS",
user="postgres", password = "*******")
query_duj_kal <- dbSendQuery(conn, "select zdroj as well, cas as date,
fe2, fe3, mn, nh4, no2, no3, o2, teplota as temperature from analystats
where zdroj like 'Dunaj Kalinkovo'")
watchem_duj_kal <- dbGetResult(query_duj_kal)
My intention with the data is to create a time series by a following
script:
date <- (watchem_duj_kal$date)
NO3 <- (watchem_...