r1 <- raster(system.file("external/test.grd", package="raster"))
r2
<- r1
dataSource(r1)
dataSource(r2)
r2 has its data on
disk.
--- On Wed, 30/6/10, Agustin Lobo <alobolis...@gmail.com> wrote:
From: Agustin Lobo <alobolis...@gmail.com>
Subject: [R-sig-Geo] Raster:memory or disk?
To: "r-sig-geo" <r-sig-geo@stat.math.ethz.ch>
Cc: agustin.l...@ija.csic.es
Date: Wednesday, 30 June, 2010, 13:58
Hi!
Is there any way to check if the values of a raster object
are in memory or in disk?
For example
r10 <- raster("2000_TSDP_IP-INVDIST-SP10_43023435.tif")
b <- r10
I understand that values of r10 are not loaded in memory
but b is completely in memory (am I wrong?)
How could I actually verify this?
Thanks
Agus
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