[R-sig-Geo] Error In proj4string

[alannie]

Thanks Ludwig!


I will see if I can fix that.


Alannie

________________________________
From: Ludwig Hilger [via R-sig-geo] <ml-node+s2731867n7587311h75 at n2.nabble.com>
Sent: Monday, October 20, 2014 3:44 PM
To: Grant, Alannie Grace Gabrielle
Subject: Re: Error In proj4string

Hi,

i guess it is not working because temp is class character and therefore does not have a spatial reference slot. I would use the raster package to combine all these layers.

regards,
Ludwig

Am 20.10.2014 20:21, schrieb alannie [via R-sig-geo]:
Hi list!

I have been trying to run some code that I have run tons of times before, only to get a warning message:

##add in ASCII raster maps bio1-11
> bio1 <- readGDAL("bio1.asc")
bio1.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio2 <- readGDAL("bio2.asc")
bio2.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio3 <- readGDAL("bio3.asc")
bio3.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio4 <- readGDAL("bio4.asc")
bio4.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio5 <- readGDAL("bio5.asc")
bio5.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio6 <- readGDAL("bio6.asc")
bio6.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio7 <- readGDAL("bio7.asc")
bio7.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio8 <- readGDAL("bio8.asc")
bio8.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio9 <- readGDAL("bio9.asc")
bio9.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio10 <- readGDAL("bio10.asc")
bio10.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
> bio11 <- readGDAL("bio11.asc")
bio11.asc has GDAL driver AAIGrid
and has 1486 rows and 1347 columns
###combine raster maps
> temp <- cbind("bio1", "bio2", "bio3", "bio4","bio5","bio6","bio7","bio8","bio9","bio10","bio11")
> names(temp) <- c("bio1", "bio2", "bio3", "bio4","bio5","bio6","bio7","bio8","bio9","bio10","bio11")
###read in point file lin.shp
> lin <- readShapePoints("lin.shp")
###set proj4strings to the same proj4string: this is where the issue is
> proj4string(lin)= proj4string(temp)
Error in (function (classes, fdef, mtable)  :
  unable to find an inherited method for function ‘proj4string’ for signature ‘"matrix"’
###what is in "temp" ?
> temp
     [,1]   [,2]   [,3]   [,4]   [,5]   [,6]   [,7]   [,8]   [,9]   [,10]   [,11]
[1,] "bio1" "bio2" "bio3" "bio4" "bio5" "bio6" "bio7" "bio8" "bio9" "bio10" "bio11"
attr(,"names")
 [1] "bio1"  "bio2"  "bio3"  "bio4"  "bio5"  "bio6"  "bio7"  "bio8"  "bio9"  "bio10" "bio11"
> class(temp)
[1] "character"
###end

I am not sure why this issue is occurring.
I have checked all the projections - all files are in the same projection.
I have restarted R - nothing gets better.
I have tried data for a different organism (it is the same data, but belonging to a different species) - this does not work.
I have the following packages loaded:
library(maptools)
library(adehabitatHS)
library(SDMTools)
library(spatial)
library(sp)
library(rgdal)
library(dismo)
library(shapefiles)


Thanks, List!







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--
Dipl. Geogr. Ludwig Hilger
Wiss. MA
Lehrstuhl für Physische Geographie
Katholische Universität Eichstätt-Ingolstadt
Ostenstraße 18
85072 Eichstätt

Tel.: 08421-93-23011

Dipl. Geogr. Ludwig Hilger
Wiss. MA
Lehrstuhl für Physische Geographie
Katholische Universität Eichstätt-Ingolstadt
Ostenstraße 18
85072 Eichstätt

Tel.: 08421-93-1180


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