Re: [R-sig-Geo] [R-sig-GEO] data set manipulation, averaging

2006-08-23 Thread Edzer J. Pebesma
[EMAIL PROTECTED] wrote: > Hello list > > I am stuck with a problem regarding the manipulation of two data sets. > > The first data set contains electromagnetic induction (EMI) readings of a > field obtained with a high sampling density,14965 records in a field 1000 > by 500 m. Each reading is geo-

[R-sig-Geo] [R-sig-GEO] data set manipulation, averaging

2006-08-22 Thread karl . sommer
Hello list I am stuck with a problem regarding the manipulation of two data sets. The first data set contains electromagnetic induction (EMI) readings of a field obtained with a high sampling density,14965 records in a field 1000 by 500 m. Each reading is geo-referenced. The second set contains s