[R] how to convert raster images to .kasc format

[Angela Smith]

Hi R user, 
I was trying to convert raster images into *kasc format using "adehabitat" package in R. but I could not convert it. I spent a lot of time but no luck. would you mind to give some hints to convert this example data?. 

I would really appreciate for your help. 
cheers,

AS
#############
example

install.packages("raster")
install.packages("dismo")
install.packages("adehabitat")
library(dismo)
library(adehabitat)
library(raster)

predictors <- stack(list.files(path=paste(system.file(package="dismo"),'/ex', sep=''),pattern='grd', full.names=TRUE ))
predictors
plot(predictors)
test<-getkasc(kasc, predictors)
> test<-getkasc(kasc, predictors)
Error in getkasc(kasc, predictors) : Non convenient data
> 




 		 	   		  
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