On 2012-06-21 04:25, Amanda Kuepfer wrote:
Hi,
I am looking to perform a kernel density analysis in R, following the script that a friend of mine is
using successfully. However, unlike for her, when I enter>kud<-kernelUD(data,
h="LSCV"), R crashes and closes every time. This does not happen when I perform a different
kernel analysis (>kud<-kernelUD(data))..
I have tried to un-install and re-install R, but it still crashes..
The script I am using is as follows:
library(adehabitatHR)
library(maptools)
data<-read.csv("sa 4 trips 13F.csv")
xy = data[c("X", "Y")]
id<-data[,c("ID")]
coordinates(data) = c("X", "Y")
class(data)
kud<-kernelUD(data) # this works fine
kud<-kernelUD(data, h="LSCV") # this causes R to crash
In both cases, shouldn't that be 'xy' instead of 'data'?
Presumably, your data.frame 'data' (bad name) contains
at least one more column ('ID'). Or why did you define
'xy' and then not use it?
Peter Ehlers
Any suggestions would be greatly appreciated.
Many thanks for your time,
Kind regards,
-Amanda-
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