Dear List
I have a simple question about the estimated standard errors obtained from
the gwr command in SPGWR package. I run a GWR regression y~x
GWRmodel<-gwr(y~x,coords=cbind(XCOO,YCOO),bandwidth=gfixcvsel,gweight=gwr.bi
square,hatmatrix=TRUE,se.fit=TRUE,se.fit.CCT=TRUE)
In the data frame
GWRmodel$SDF
there are two estimated standard errors for the x coefficients denoted as
x_se and x_se_EDF.
What is the difference between x_se and x_se_EDF and what is the best for
use, the former or the latter? The manual lacks information about this.
If I am not confused I think that the difference should be in the
approximation of hat matrix that is x_se uses s^2 with approximation
whereas x_se_EDF not.
I would appreciate any help.
Thanks in advance
Apostolis
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