Hello to all,
This is my first attempt to use GIS tools in R so I'm sorry if my question is
to naïve, but the truth is that I've spent several hours looking in forum's and
packages for a solution with no joy.
What I'm trying to achieve is to create multiple polygons (around 150) based in
On Wed, 14 Oct 2009, Rui Catarino wrote:
Hello to all,
This is my first attempt to use GIS tools in R so I'm sorry if my
question is to na?ve, but the truth is that I've spent several hours
looking in forum's and packages for a solution with no joy.
What I'm trying to achieve is to create
Hello again,
Thank you for such a quick reply.
You were right, it seems a bit obscure so following your suggestion I
attach a small example of what looks like my table. The list is in excel
format and I usually use the package xlsReadWrite to read the excel
files.
Once again thank you for your
Dear list,
I spotted the following behavior when using overlay to sample from a
SpatialPixels or SpatialGrid. The following illustrates my point:
library(sp)
data(meuse.grid)
gridded(meuse.grid) = ~x+y
meuse2 = spsample(meuse.grid,
type = regular,
...and in addition:
sessionInfo()
R version 2.9.2 (2009-08-24)
i486-pc-linux-gnu
locale:
Hi list,
the last plot in the following code ends up with error messages in the plot:
data(meuse.grid)
data(meuse)
coordinates(meuse.grid) - ~x+y
coordinates(meuse) - ~x+y
meuse.grid - as(as(meuse.grid, SpatialPixelsDataFrame),
SpatialGridDataFrame)
spplot(meuse) # works
spplot(meuse,
On Wed, 14 Oct 2009, Rui Catarino wrote:
Hello again,
Thank you for such a quick reply.
You were right, it seems a bit obscure so following your suggestion I
attach a small example of what looks like my table. The list is in excel
format and I usually use the package xlsReadWrite to read the
Dear List,
I am trying to place a scal bar in a plot and can't find a function to do it
with base graphics. Is there one? I have mfrow = c(3,3) and would like to
place the scale bar in the last pannel. An example of what I am wanting
follows.
Thanks!
x - 0:12
y - sin(pi/5 * x)
op -
