[R] R crashes with >kud<-kernelUD(data, h="LSCV") script

[Peter Ehlers]

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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