[R-sig-Geo] spdep and server

[Sarah Goslee]

A reproducible example and the basis system information requested
in the posting guide would be very helpful.
OS, version of R, versions of the relevant packages...

We really do need this information to answer questions.

Sarah

On Thu, Dec 1, 2011 at 9:45 AM, Matilde Karakachoff <karaka at ifc.cnr.it> wrote:
> Ok, I’m sorry. I think that there was a little problem with my previous
> message.
>
> I’m trying to execute some R commands on a linux server (where I installed R
> and packages previously) to create a SpatialGridDataFrame. It has to be a
> grid 10*10 to which I will associate data resulting from simulations of the
> spatial distribution of genotypic data (Fregene).
>
>
> Some lines and columns of my data frame:
> coord   x       y       f.all1s1        f.all2s1
> 4040    40      40      0,665   0,335   0,05346675
> 4041    40      41      0,72    0,28    0,049152
> 4042    40      42      0,825   0,175   0,04141875
> 4043    40      43      0,81    0,19    0,042483
> 4044    40      44      0,82    0,18    0,041772
> 4045    40      45      0,59    0,41    0,059643
> 4046    40      46      0,585   0,415   0,06006675
> 4047    40      47      0,405   0,595   0,07632075
>
> My script:
>>
>> library(spdep)
>> Locus1 <- read.csv2(file='data.csv', head=T)
>> coordinates(Locus1) <- c('x', 'y')
>> Locus1.sp <- as(Locus1, 'SpatialPixels')
>> Locus1.gr <- as(Locus1.sp, 'SpatialGridDataFrame')
>
>
> The first four lines are ok, but the last one gives the following error:
>
> Error in asMethod(object, Class, value) : replace-coercion not allowed
>
> But if I run it on my computer it works. So, why it doesn’t work on a
> server? May be the ‘spdep’ package doesn't work in the same way on linux?
> Thanks a lot,
>
> Matilde
>
>
-- 
Sarah Goslee
http://www.functionaldiversity.org