Yes, thanks. Will do this. "Víctor Homar Santaner" <victor.ho...@uib.cat> wrote:
>Hi and thanks to all R developers and helpers,> >> >I'm writing a few words of code to perform automatic ordinary krigings for a >number of dates. In my dataset some duplicated locations exist (at the >resolution of the coordinates I use) for some days. Thus, I run the >straight-forward solution of using the "remove.duplicates" and the process >works well.> >> >The problem is when the loop applies "remove.duplicates" for an object with no >duplicates. The output of this command is not the original object but an empty >one:> >> >> str(Pst)> >Formal class 'SpatialPointsDataFrame' [package "sp"] with 5 slots> > ..@ data :'data.frame': 177 obs. of 1 variable:> > .. ..$ PCP: num [1:177] 0 0 0 0 0 0 1.2 0.6 0 0 ...> > ..@ coords.nrs : num(0) > > ..@ coords : num [1:177, 1:2] 518 494 490 489 490 ...> > .. ..- attr(*, "dimnames")=List of 2> > .. .. ..$ : chr [1:177] "B001" "B007" "B013" "B014" ...> > .. .. ..$ : chr [1:2] "X(km)" "Y(km)"> > ..@ bbox : num [1:2, 1:2] 345 4280 612 4438> > .. ..- attr(*, "dimnames")=List of 2> > .. .. ..$ : chr [1:2] "X(km)" "Y(km)"> > .. .. ..$ : chr [1:2] "min" "max"> > ..@ proj4string:Formal class 'CRS' [package "sp"] with 1 slots> > .. .. ..@ projargs: chr "+proj=utm +zone=31 +units=km"> >> >> remove.duplicates(Pst)> >[1] coordinates PCP > ><0 rows> (or 0-length row.names)> >Warning messages:> >1: In min(x) : no non-missing arguments to min; returning Inf> >2: In max(x) : no non-missing arguments to max; returning -Inf> >3: In min(x) : no non-missing arguments to min; returning Inf> >4: In max(x) : no non-missing arguments to max; returning -Inf> >> >Wouldn't it be nice if "remove.duplicates" left objects with no duplicates >unmodified?> >> >> >Thanks,> >> >V�ctor.> >--> >--------------------------------------------------------------------> >V�ctor Homar Santaner> >Grup de Meteorologia Departament de F�sica> >Edif. Mateu Orfila Tel: +34 971 17 2505> >Universitat de les Illes Balears Fax: +34 971 17 3426> >07122 Palma de Mallorca (SPAIN) Email: victor.ho...@uib.es> >> > Knowledge is contagious. Infect truth.> >--------------------------------------------------------------------> >> >> >> >> >> >> >> >> >> >> >> >> >> > > [[alternative HTML version deleted]] > >_______________________________________________ >R-sig-Geo mailing list >R-sig-Geo@stat.math.ethz.ch >https://stat.ethz.ch/mailman/listinfo/r-sig-geo
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