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

[Amanda Kuepfer]

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


Any suggestions would be greatly appreciated.

Many thanks for your time, 

Kind regards,
-Amanda-
        [[alternative HTML version deleted]]


______________________________________________
[hidden email] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[Michael Weylandt]

Hi Amanda,

I can't reproduce this without your data set. Would it be possible for
you to give us dput(head(data, 20)) if you need further help?

Also, if you could supply the output of sessionInfo()? That's often
helpful for anything that "crashes" [that term means many things to
different people so if you could be more specific that'd be great as
well]

Finally, you may with to get in touch with the maintainer of the
adehabitatHR package directly. You can get contact info by typing
maintainer("adehabitatHR") at your prompt.

Best,
Michael

On Thu, Jun 21, 2012 at 6:25 AM, Amanda Kuepfer <[hidden email]> 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
>
>
> Any suggestions would be greatly appreciated.
>
> Many thanks for your time,
>
> Kind regards,
> -Amanda-
>        [[alternative HTML version deleted]]
>
>
> ______________________________________________
> [hidden email] mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>

______________________________________________
[hidden email] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.

[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-
> [[alternative HTML version deleted]]

______________________________________________
[hidden email] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.