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tomocon
2011 Apr 15
1
Idetntifying nearest topographic contours to data points
Hi there,
I have two data sets, one of locations at different elevations (x,y,z) and
the other of points that make up topographic contours (also x,y,z). I have
used:
result<-apply(distppll(data2,cbind(topocon[-nrow(topocon),],topocon[-1,])),1,min)
where 'data2' are my measurement coordinates (x, y) and 'topocon' are my
topographic contours (x,y). While this gives me an output of the distance
from each data point to the nearest topographic contour point, I would also
like to output the &...