Dear List,
I am comparing the squared R values of linear models and its spatial
autoregressive counterparts. (SARerror)
(1. lm (Y~X1)
2. lm (Y~ X1+X2)
3. lm(Y~X1+X2+X3))
The squared R values of linear models are generated by command summary (lm).
Similarly, I tried to produce those of
On Mon, 22 Nov 2010, elaine kuo wrote:
Dear List,
I am comparing the squared R values of linear models and its spatial
autoregressive counterparts. (SARerror)
(1. lm (Y~X1)
2. lm (Y~ X1+X2)
3. lm(Y~X1+X2+X3))
The squared R values of linear models are generated by command summary
(lm).
Dear Researchers
I am looking for a function to count how many elements repeats inside my
data.frame and create a new data.frame as the following example.
thanks and sorry for desturbing
example
mydata -
data.frame(myfield=c(A,A,A,A,A,A,B,B,B,B,C,C,C,D,D))
#result
myfiled count
A 6
B 4
C 3
D
Ogbos,
You can do this:
library(raster)
xy-cbind(x, y)
r - rasterize(xy, raster(nrow=120, ncol=60), fun=sum)
rb - rev(rainbow(255,s=1,v=1,start=0,end=7/12,gamma=1,alpha=1))
image(r, col=rb, ylab = Longitude, xlab=Latitude )
Or, in your code, instead of this
z = t(grid3)
this might work:
z =
Hi There,
Raster package makes this an easy work!! I didn't have to wallow through my
long code. Thank you to all those who contributed.
Regards
Ogbos
On 22 November 2010 18:43, Robert J. Hijmans r.hijm...@gmail.com wrote:
Ogbos,
You can do this:
library(raster)
xy-cbind(x, y)
r -
Hi,
I am trying to run grass from R via the spgrass6 package on MacOSx while
following this nice Wiki. I have installed the spgrass6 package from source
on mac. grass-6.4 is also installed via the great website of KingChaos (
http://www.kyngchaos.com/software/grass).
library(spgrass6)
Loading
On Mon, 22 Nov 2010, Jan Verbesselt wrote:
Hi,
I am trying to run grass from R via the spgrass6 package on MacOSx while
following this nice Wiki. I have installed the spgrass6 package from source
on mac. grass-6.4 is also installed via the great website of KingChaos (
Works for stack and not for brick:
inMemory(N1)
[1] FALSE
v - list(N1, N2, N3)
do.call(stack, v)
class : RasterStack
nlayers : 3
nrow: 1905
ncol: 3697
ncell : 7042785
projection : +proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs +towgs84=0,0,0
min value : 0
the path should be :
/Application/GRASS-6.4.app/Contents/MacOS
epy$ ls
AUTHORS bin grass.sh
CHANGES bwidget include
COPYING docslib
GPL.TXT driver man
GRASS
