Dear all,
I have been playing with rasters for a while but when it comes to plotting
I always encounter some difficulties that I have not resolved yet...
* I have a raster r2
e
class : Extent
xmin: -2356170
xmax: -1624740
ymin: 1218210
ymax: 2538240
r2 =
Dear subscribers and Prof. Bivand,
I am using lagsarlm function in spdep package to study my research problem.
I am trying to use restaurants' price, rating, and some other variables to
explain their customer visit. So customer visit is my dependent variable,
and I have 6 independent variables. I
Dear list,
I am using large raster bricks for my analyses and I am running out of
memory. I get the following message:
Error: cannot allocate vector of size 231.0 Mb
and this whether I do all my brick manipulations by loading the brick in
R's memory or not (i.e., whether I use the option
On Wed, 12 Dec 2012, Lei Wang wrote:
Dear subscribers and Prof. Bivand,
I am using lagsarlm function in spdep package to study my research problem.
I am trying to use restaurants' price, rating, and some other variables to
explain their customer visit. So customer visit is my dependent
2012/12/12 Marie Auger-Methe marie.augerme...@gmail.com
Dear list,
I am using large raster bricks for my analyses and I am running out of
memory. I get the following message:
Error: cannot allocate vector of size 231.0 Mb
and this whether I do all my brick manipulations by loading the
Take a look at setOptions to force disk to disk.
raster will guess if it can do the operation in memory but occasionally
underestimates the memory available or required.
Sent from my iPhone
On 12/12/2012, at 15:20, Raffaele Morelli raffaele.more...@gmail.com wrote:
2012/12/12 Marie
Marie,
It seems you are manipulating large amounts of data in RAM with 32-bit R
--- use 64 bit if you can. As Jacob indicated, you can use options like
rasterOptions(maxmemory=1e+07, chunksize=1e+06). However, you might also
have been able to avoid memory problems by using the more direct
b1 -
Hi,
I have used the rasterize function to get values from a
spatialPolyDataFrame variable (@data$variable) to raster:
rasterize(SPDFobj, rasterObj, field=variable)
For a specific case a get a, to me, strange error message .
Error in writeValues(out, fun(n), tr$row[i]) :
error in evaluating
