[R-sig-Geo] Beginners question: From text-raster to grid / map

[PEP Serra Diaz]

Sorry, the inteded data.frame is to be like this:

X  Y  VALUE
2  8  4
4  8  5
6  8  5
8  8  6
2 10 2
4 10 3 
6 10 4 
8 10 5
2 12 3
4 12 6
6 12 7 
8 12 4



----- Missatge original -----
De: PEP Serra Diaz <Josep.Serra at uab.cat>
Data: Divendres, Setembre 17, 2010 1:16 pm
Assumpte: Beginners question: From text-raster to grid / map

> 
> Dear R-SIGers,
> 
> I would like to know which function to use in order to plot a map.
> 
> I know my origin of coordinates (x=2,y=8), and my resolution (2)
> 
> And I have an ASCII/txt file as an output matrix 
> 
> 3 6 7 4
> 2 3 4 5
> 4 5 5 6
> 
> I would like to plot a map for these values and/or alternatively 
> get a table like that (in other words, assign coordinates to each 
> value of the text.file (matrix))
> 

> 
> Thanks,
> 
> Pep 
>