Dear Simon,
I understand better now and it is running.
//Belay
On Sat, May 19, 2012 at 1:22 PM, Simon Knapp wrote:
> I'm not sure what line you mean. The thing you pass to raster should
> be a matrix of the dimensions of your image data.
>
> You should have have xmin, xmax, ymin and ymax defin
Thanks Simon. I have other vectors in the CSV file so after naming my
latitude and longitude x and y, I tried this. The first two lines run fine
but I get error in the second line.
r <- raster(as.matrix(F1))
extent(r) <- extent(xmin, xmax, ymin, ymax)
F1<-data.frame(x, y,z)
Error in function (cl
This already in your question:
"+init=epsg:4326"
That is equivalent to "+proj=longlat +ellps=WGS84" just looked up via the
EPSG code. A good site to explore this topic is spatialreference.org
On Saturday, May 19, 2012, Belay Gebregiorgis wrote:
> Hello everyone,
>
> I want to get a 1km by lkm g
provided you get the call to read.table (or perhaps read.csv) right
and presuming that file contains only the image data, you should
be able to say:
r <- raster(as.matrix(read.csv("file.csv")))
extent(r) <- extent(xmin, xmax, ymin, ymax)
and not worry about the projection (if it is plain old deci
Hello everyone,
I want to get a 1km by lkm grid raster image using my csv data. If I call
latitude=a, longitude=b and preciptation=c.
a<-(1,2,3,4,5)
b<-(6,7,8,9,10)
c<-(10,20, 30,40, 50)
Then I found an example in r help which goes like
pts = read.table("file.csv",..)
library(sp)
library(rg
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