Displaying 2 results from an estimated 2 matches for "model1j".
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model1
2006 Mar 21
3
transform shapefiles in UTM to lat/long
Dear all:
I have a shapefile in UTM coordinate system and I would like to transform it
to Lat/Log coordinates (WSG84). The package PBSmapping contains function
convUL to transform between the two coordinate systems when data is in the
form of a data frame with attributes specifying the coordinate system.
However, when shapefiles are imported using function read.shape (package
maptools), a list
2006 Mar 23
3
Still problems with "step()" function
Hi R users:
I don?t know if anybody have had the same problem with 'step()' funtion.
If I type the commands
-------------------------------------------------------------------------------
testData<-read.table("testData.dat",header=T)
model1J<-glm(MCHNV~offset(Offset1),data=testData,family="poisson")
step(model1J,direction="forward",
scope=(list(upper=~IA+IM+altura+Region+Region:IA+Region:IM+Region:altura+offset(Offset1),
lower=~offset(Offset1))))
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