[R-sig-Geo] What is the unit of fixed bandwidth calculated from gwr.sel?

2008-06-25 Thread Debarchana Ghosh
is: dat.bw.cv 69.79589 My question is what is the unit of the fixed bandwidth here? Thanks, Debs. -- Debarchana Ghosh PHD Candidate | Research Assistant Department of Geography University of Minnesota. PH: 8143607580 www.tc.umn.edu/~ghos0033/ [[alternative HTML version dele

Re: [R-sig-Geo] Interpretation of gwr output ~ where is the fitted/predicted y?

2008-06-18 Thread Debarchana Ghosh
dual = (observed Y) > - (estimated Y). > > To extract the gwr.e, just do this: > > residuals.gwr<-test500.gwr$SDF$gwr.e > > and the estimated Y would be: > > est.gwr<-yimp00-residuals.gwr > > And then you can compare all Ys. > > Hope this helps. > > Cheers,

Re: [R-sig-Geo] Interpretation of gwr output ~ where is the fitted/predicted y?

2008-06-18 Thread Debarchana Ghosh
3) estimated Y from the GWR regression (from the gwr object) Thanks, Debs. -- Debarchana Ghosh PHD Candidate | Research Assistant Department of Geography University of Minnesota. PH: 8143607580 www.tc.umn.edu/~ghos0033/ [[alternative HTML version deleted]] _

[R-sig-Geo] Interpretation of gwr output ~ where is the fitted/predicted y?

2008-06-17 Thread Debarchana Ghosh
c1dipark" "tccost1""soil1" "soil2" "R2" "gwre" "Interse" "englishse" "slope30se" [23] "mac95dse" "mdinctse" "musa00se" "popdentse" &qu

Re: [R-sig-Geo] Error in converting SpatialPointsDataFrame object to ESRI shape file using writeOGR from rgdal package

2008-06-17 Thread Debarchana Ghosh
; "diswaterse" "ag04se" "c1dishwyse" "c1diparkse" "tccost1se" "soil1se" "soil2se" # Converting a "SpatialPointsDataFrame" object to ESRI shape file # packages rgdal writeOGR(test500.gwr$SDF, place, &quo

[R-sig-Geo] Error in converting SpatialPointsDataFrame object to ESRI shape file using writeOGR from rgdal package

2008-06-16 Thread Debarchana Ghosh
en_t" "dissewer" [10] "dismcd" "diswater" "ag04" "c1dishwy" "c1dipark" "tccost1" "soil1""soil2""R2" [19] "gwr.e"

[R-sig-Geo] CHOLMOD and GetClass error when running errorsarlmfrom spdep package with method = Matrix or SparseM

2008-01-14 Thread Debarchana Ghosh
I also tried the following adr_rd.saerror<-errorsarlm(LN_PRICE~., data=adr_rd_ols, wts2500, zero.policy=TRUE, method="SparseM") I got the following Error in getClass(Class, where = topenv(parent.frame())) : "matrix.csr" is not a

[R-sig-Geo] construct neighbor list from polygon list with user defined distance thresholds, as found in GeoDa?

2008-01-11 Thread Debarchana Ghosh
#x27;Queen' contiguity method. Thanks for your help. Debs. -- Debarchana Ghosh PHD Candidate | Research Assistant Department of Geography University of Minnesota. PH: 8143607580 www.tc.umn.edu/~ghos0033/ [[alternative HTML version deleted]] __

Re: [R-sig-Geo] Problem with spatial error model - discontinuous polygons - memory problem

2008-01-11 Thread Debarchana Ghosh
lp. Debs. On Jan 11, 2008 2:05 AM, Roger Bivand <[EMAIL PROTECTED]> wrote: > On Thu, 10 Jan 2008, Debarchana Ghosh wrote: > > > Hi, > > > > I'm trying to run a spatial error model using the spdep package. I'm > working > > on a windows machine with 2G

[R-sig-Geo] Problem with spatial error model - discontinuous polygons

2008-01-10 Thread Debarchana Ghosh
Warning message: NAs in lagged values in: lag.listw(listw, y, zero.policy = zero.policy) When I tried to Moran's I test, it gave similar errors. How can I solve this problem? Is there any wrong with the listw object (adrweights)? I'll appreciate any help. Thanks, Debs. -- Deb

[R-sig-Geo] Can voronoi polygons calculated in R be converted to ESRI shapefile?

2007-11-13 Thread Debarchana Ghosh
ibrary(PBSMapping) testbirdvor<-calcVoronoi(testbird) >From here how can I create an ESRI shapefile of the voronoi polygons in R and export to ArcGIS for further use. Thanks for the help, Debs. -- Debarchana Ghosh PHD Candidate | Research Assistant Department of Geography University of M

[R-sig-Geo] Spatial autocorrelation of binary data

2007-07-12 Thread Debarchana Ghosh
Hello, Is there any function in R which can do spatial autocorrelation of binary data or Joint-Count statistics? The data is in the format 1 and 0. Thanks in advance, Debs. -- Debarchana Ghosh Research Assistant, Department of Geography University of Minnesota. PH: 8143607580 www.tc.umn.edu

[R-sig-Geo] problem with writeGDAL, its reading as black box in ARcGIS

2007-07-09 Thread Debarchana Ghosh
Median Mean 3rd Qu. Max. NA's 0.00e+00 0.00e+00 1.24e-08 6.191000e-08 5.724000e-08 6.325000e-07 3.248585e+06 Thanks, Debs. -- Debarchana Ghosh Research Assistant, Department of Geography University of Minnesota. PH: 8143607580

[R-sig-Geo] Problem in creating esri grid from SpatialGridDataFrame

2007-06-29 Thread Debarchana Ghosh
I could not read/open the .ag file in ArcMap 3. Is write.asciigrid the correct function to write spatialGridDataFrame object in ESRI readable grid format? Thanks, Debs. -- Debarchana Ghosh Research Assistant, Department of Geography University of Minnesota. PH: 8143607580 www.tc.umn.edu/~gh

Re: [R-sig-Geo] How to find neighbor polygons and analysis of their attributes

2007-02-20 Thread Debarchana Ghosh
> 17: no non-missing arguments to max; returning -Inf > > 18: no non-missing arguments to max; returning -Inf > > 19: no non-missing arguments to max; returning -Inf > > 20: no non-missing arguments to max; returning -Inf > > 21: no non-missing arguments to max;

Re: [R-sig-Geo] How to find neighbor polygons and analysis of their attributes

2007-02-20 Thread Debarchana Ghosh
-Inf 20: no non-missing arguments to max; returning -Inf 21: no non-missing arguments to max; returning -Inf I can't understand what these warnings mean. writePolyShape() writes 3 files, "scot.shp", "scot.shp.dbf", "scot.shx". I can view the dbf file but not the

Re: [R-sig-Geo] How to find neighbor polygons and analysis of their attributes

2007-02-19 Thread Debarchana Ghosh
too. > Are there for example any Date fields? Yes there is one Date field. But I'm trying to see whether readShapePoly() will work as well. Thanks for all the codes. Debs. Roger > > > On Fri, 16 Feb 2007, Debarchana Ghosh wrote: > > > Hi, > > > > I f

Re: [R-sig-Geo] How to find neighbor polygons and analysis of their attributes

2007-02-16 Thread Debarchana Ghosh
: unsupported type The parcel_scot.shp has lakes and some other water features in it. If this is a problem, do I have to use readShapePoly() in maptools? Thanks, Debs. On 2/15/07, Roger Bivand <[EMAIL PROTECTED]> wrote: > > On Thu, 15 Feb 2007, Debarchana Ghosh wrote: > &g

[R-sig-Geo] How to find neighbor polygons and analysis of their attributes

2007-02-15 Thread Debarchana Ghosh
polys and assign that value to a new filed in the original poly. I would like to loop this so that it will do it for all the polygons in my layer. I have approx 50,000 polygons. Any help with will be greatly appreciated. Thanks, Debs. -- Debarchana Ghosh Research Assistant, Department of Geography

[R-sig-Geo] Help with the Kmeasure function from the Spatstat package

2006-12-05 Thread Debarchana Ghosh
s the 'sigma', which is standard deviation of the isotropic Gaussian smoothing kernel. I don't know how to compute that or which function to use to compute that value. Any help with this will be appreciated. Thanks, Debs. -- Debarchana Ghosh Research Assistant, Department of Ge

[R-sig-Geo] Error in 'Jest' and 'Fest' funcstions of Spatstat package

2006-12-04 Thread Debarchana Ghosh
<-as.ppp(splanc_wnvbird03) Jbird03<-Jest(ppp_wnvbird03, 0.01) ## And I'm getting the following error. Error in matrix(TRUE, nrow = nr, ncol = nc) : matrix: too many elements specified I can't undestand the error. Any help with this would be greatly appreciated. Thanks, Debs

[R-sig-Geo] Problem in converting SpatialPolygonsDataFrame to owin object

2006-09-12 Thread Debarchana Ghosh
I realised SpatialPolygons is not same as SpatialPolygonDataFrame. If I'm correct how will I convert 'SpatialPolygonDataFrame' to 'SpatialPolygons' obgect? I'm using windows with 2GB RAM Thanks, Debs -- Debarchana Ghosh Research Assistant, Department of Geography Un

[R-sig-Geo] How to convert esri shapefiles to ppp objetcs/ owin object

2006-09-11 Thread Debarchana Ghosh
ass object from the esri shapefiles specially the uneven polygon. I have a study area of seven counties. Any help on this will greatly appreciated. Thanks, Debs. -- Debarchana Ghosh Research Assistant, Department of Geography University of Minnesota. PH: 8143607580 www.tc.umn.edu/~ghos0033/

[R-sig-Geo] exact ponit location of dsease and clustering problem

2006-09-07 Thread Debarchana Ghosh
methods/packages should I check to do a point clustering analysis. Any help on this will be very much appreciated. Thanks, Debs. -- Debarchana Ghosh Research Assistant, Department of Geography University of Minnesota. PH: 8143607580 www.tc.umn.edu/~ghos0033/ [[alternative HTML version

[R-sig-Geo] Moran's I - nb class?

2006-07-19 Thread Debarchana Ghosh
an't understand how to create the object of class nb and which function to use to create it. Any help will be appreciated. Thanks, Debarchana. -- Debarchana Ghosh Research Assistant, Department of Geography University of Minnesota. PH: 8143607580 www.tc.umn.edu/~ghos0033