# NOT RUN {
#Calculate the distance between the catchment centroid for the
#Kingston upon Thames river gauge and the catchment centroid for the
#gauge at Ardlethen on the River Ythan. First view the eastings and northings
GetCDs(10001)
GetCDs(39001)
NGRDist(i = c(381355, 839183), j = c(462899, 187850))
# }
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