Hi all,
I am not sure as to which list this best fits (Grass or R-sig-geo).
I am trying to reclass a raster map (ndvi) into 5 different zones using the
fisher method, ultimatley i am trying to reclass as natural breaks.
The point of this exercise is for precision agriculture. I want to determine
Hi Greg,
Just a small remark: it would not be a special treatment because I am anyway
80% of my time located in Amsterdam ;)
Edzer, thanx for fixing this problem. I did run kriging on LatLon projected
data a lot actually. LatLon coordinates are especially attractive because you
can then dire
Hi Mikael,
you can use some of the functions in the RSAGA package to extract values
from a file (grid/shapefile) or data.frame and attach them to a
data.frame with point locations.
If I may assume that 'indata' is an grid, try any of
pick.from.ascii.grid
pick.from.saga.grid
rsaga.add.g
Hi Tim,
the most recent release of RSAGA has a wrapper function for this module
that is called rsaga.add.grid.values.to.points; try this:
rsaga.add.grid.values.to.points("test", c("slope", "aspect"),
"add_grid", method = "nearest.neighbour", env = myenv)
(Note that the wrapper function us
Hello to everybody,
I´m trying to use the SAGA tool "Add Grid Values to Points" in R using the
RSAGA package
("shapes_grid", 0) but there is an error message I can`t figure out.:
> rsaga.geoprocessor("shapes_grid",0, list(SHAPES="test.shp",
> GRIDS=list("slope.sgrd",
"aspect.sgrd"), RESULT="a
Dear readers,
I have one file look like
ew;ns;cu;zn
1234567;7654321;23.4;13.7
name indata
load with read.table command
another file look like
2;cu;zn
name parmlst
also load with read.table
I want to do as follows
cu.v <- as.vector(cu)
zn.v<- as.vector(zn)
but using a for loop, like
for (i in
Hi Cora,
A mucht better way of storing R-objects in files is through the use of
the save() command. The load() command is the equivalent to reload the
file. Example in code:
vmodel = vgm(10, "Exp", 300, 4.5)
save(vmodel, file = "vmodel.rda")
# reloading the file
load("vmodel.rda")
see ?save
No sign of sp 0.9-27 at this end (Melbourne, Australia) yet. Interesting
that it should take so long.
I temporarily reset my repository to access the updates. Croatia already has
sp 0.9-28, along with gstat 0.9-53. (Does Tomislav receive special
treatment?)
Your example now works perfectly. Thank
That's right; my fault that I sent the email and updated the sp package
on CRAN almost at the same time. The new sp (0.9-27 would suffice)
should now have propagated to your mirror, simply update your sp package
again and it should work. Let me know if it doesn't.
--
Edzer
Greg Lee wrote:
Hel
