Displaying 3 results from an estimated 3 matches for "datasample".
2011 May 04
1
Instrumental variable quantile estimation of spatial autoregressive models
...sk if someone has implemented the method proposed by Su and Yang in R or if anyone could give me a hint on the different codes and steps?
Please find attached a small sample of my data and matrix.
R codes:
library(foreign)
library(lmtest)
library(spdep)
library(quantreg)
data<-read.table("DataSample.txt",header=TRUE, sep="")
attach(data)
matrix<-read.gwt2nb("matrixsample.gwt" ,region.id=no_Trans)
matrix.listw<-nb2listw(matrix)
OLS model
OLS<-lm(lnprice~surface+d2007+LUX+tsect_ci, data=data)
summary(OLS)
SAR model
SAR<-lagsarlm(lnprice~surface+d2007+LUX+t...
2012 Nov 13
1
Quastion
Hey Dear,
I have got aproblem with interpolation 2D transmisivity in the datasample= data.frame, it is not running I got this (Error in as.data.frame.default(x[[i]], optional = TRUE) :
cannot coerce class '"function"' into a data.frame). So, how shall I manage this??
Regards,
Siffan
[[alternative HTML version deleted]]
2002 Jul 12
2
Lattice help (again?)
...oints(x,y)
panel.loess(x,y,span=1)
panel.superpose(x,y,...)
}
subset(m1data,! is.na(votms) & !is.na(age) & !is.na(Cplace) &
!is.na(tokentype)& !is.na(voicing),
select=c(votms,age,Cplace,tokentype,voicing)) -> sampledata
xyplot(votms ~ age | Cplace +
tokentype,data=datasample,xlab="Subject Age (months)",ylab="Voice
Onset Time (ms)",panel="my.panelconstr",groups=voicing)
Some information on the data set:
> sapply(sampledata,levels)
> $votms
> NULL
>
> $age
> NULL
>
> $Cplace
> [1] "bilabial" &qu...