Nothing
## check the performance of optimization
require(HydroCode)
set.seed(777)
bas <- runif(25000,
min = 100000,
max = 999999)
bas <- as.integer(bas) ## truncates
## get the time
system.time(
out1 <- bas[1] %up% bas
)
## check with is.upstream
system.time(
out2 <- is.upstream(bas[1], bas)
)
all.equal(out1, out2)
## check with downstream
system.time(
out1 <- bas[1] %down% bas
)
system.time(
out2 <- is.downstream(bas[1], bas)
)
all.equal(out1, out2)
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