[R-sig-Geo] help on programing
Roger.Bivand at nhh.no
Fri Jun 16 18:10:22 CEST 2006
On Fri, 16 Jun 2006, zhijie zhang wrote:
> Dear friends,
> I want to finish the following task, hope someone to give the R
Could I ask for a little clarification?
> *step1*: Generate a planar x(0,100)*y(0,100) ;
This is a 0,100 by 0,100 square, right?
> *step2*: Divide the planar into 100 grids,either use the number of grids or
> use the coordinates of x/y;(like gridpts(poly,npts,xs,ys)
How many grid cells do you need, 100 or 100 by 100?, that is npts=100 or
> *step3*: generate the spatial points with autocorrelation, and link points
> with the grid center;
Are the points from a point process model, in which case do you want
clustered or regular? And if so, do you want to assign them to the grid
cells (I think so)?
> how to do that ? Because of poor R programing techniques, I hope someone
> will spend a few minutes to help me.
> Any suggestions are greately welcome!
> Hope to get the programs as soon as possible.
> With kind regards,
> [[alternative HTML version deleted]]
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Economic Geography Section, Department of Economics, Norwegian School of
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e-mail: Roger.Bivand at nhh.no
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