Dear list,
apologize for the unusual question. I am new and I have some problems with
some of the terminology.
I had my codes running but only after trial and error rather than with a
full understanding of what is what and this does not entirely satisfy me.
I have a data frame (call it grid1) con
Gabriele,
it would be surely very useful for you to read the ASDAR-book:
Bivand, Roger S., Edzer J. Pebesma, und Virgilio Gómez-Rubio. Applied
spatial data analysis with R. Use R! New York: Springer, 2008.
http://www.asdar-book.org/;
http://www.springerlink.com/content/978-0-387-78170-9.
Be
Ciao Gabriele,
you can find a shorter yet very useful descriptions of how spatial classes
work in one of the vignettes of the sp-package.
To visualize that, simply write on R terminal
> vignette("intro_sp")
this will open a pdf.
You can also download it directly from
http://cran.r-project.org/w