[R-sig-Geo] creating a geotiff

[Monica Pisica]

Hi,
 
I have some data as it is required for the function "image" {graphics}, that means a vector x for x coord, a vector y for y coord and a matrix m with x rows and y cols. I want to save this as a geotiff.  If i transform my data to take the form of a 3 column data.frame i can use gridded and writeGDAL to obtain my geotiff, but sincerely it  seems a little silly to do that. Is there any other way in doing it??? I've tried to transform this data in one of the sp objects but .... i was not able to. Any ideas??
 
Thanks for all the help,
 
Monica

 
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