Displaying 3 results from an estimated 3 matches for "mchnv".
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))))
-----------------------------------------------------...
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 22
1
error message with stats package fx cor R aqua v1.14
Hello,
Sorry if this is somewhere in the archives but i couldn't find it. I
am using the funtion cor() and inputting a large matrix with a column
of 0, for which i get NA's for. I'm looking for a way to overcome
that divide by 0 error btw but my real issue is this:
I specify the method as pearson but the error messages always say kendall
ex)
> read.csv("ncatest.csv",