Hi,I am trying to do kriging with in strata. I use the example in book "Applied Spatial Data Analysis with R" page:217. It works fine with "meuse" data. But when I am trying to use my data it shows some error massage.
Do I missing something here? Thanks in advance Zia
Note: I am using following codes: coordinates(tala) <- ~ x + y gridded(tala.grid) = ~x+y > names(tala.grid)[1] "lt.a" "lt.b" "elev" "FDID" "wfe_was" "was" "was.lt" "elev.sqrt"
# lt.a= flooding land type 1 and lt.b=flooding land type 2 tala$lt.a <- tala.grid$lt.a[overlay(tala.grid, tala)] > names(tala) [1] "YID" "FDID" "elev" "was" "sas" "lt.a" "lt.b"x1 <- krige(sas ~ 1, tala[tala$lt.a == 0, ],tala.grid[tala.grid$lt.a == 0, ], model = vgm(35,"Sph", 2000, 15), nmin = 8, nmax = 40, maxdist = 1000)
Error in tala[tala$lt.a == 0, ] : NAs not permitted in row index Error in krige(sas ~ 1, tala[tala$lt.a == 0, ], tala.grid[tala.grid$lt.a == : error in evaluating the argument 'locations' in selecting a method for function 'krige'
x2<- krige(sas~1, tala[tala$lt.a == 1, ],tala.grid[tala.grid$lt.a == 1, ], model = vgm(30,"Sph", 2000), nmin = 8, nmax = 40, maxdist = 1000)
Error in tala[tala$lt.a == 1, ] : NAs not permitted in row index Error in krige(sas ~ 1, tala[tala$lt.a == 1, ], tala.grid[tala.grid$lt.a == : error in evaluating the argument 'locations' in selecting a method for function 'krige'
On 1/22/2011 4:51 PM, Edzer Pebesma wrote:
On 01/22/2011 11:18 AM, Patrick Giraudoux wrote:Hi, Does anybody knows if it is possible to fix user defined maximum and minimum values in the key of a xyplot (or spplot) graphics ? I have a set of seperate drawings and I would like to keep the same color scheme between fixed values for all of them (which looks like being not possible, autokey normally adapting the range of colors to the particular range of values in each plot.If your object is of class SpatialPointsDataFrame, it may suffice to pass the argument "cuts" with the vector of cuts. If it is grid/polygons/lines, use the "at" component of the "colorkey" argument to specify breaks; see ?levelplot in package lattice.Patrick _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo
<<attachment: zua3.vcf>>
_______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo
