Nothing
library(CloneSeeker)
new("WeightVector")
new("WeightVector", 1:3)
try( new("WeightVector", 0) )
try( new("WeightVector", -1:3) )
WeightVector(1:4)
try( WeightVector(0) )
try( WeightVector(-1:3) )
try( WeightVector(LETTERS[1:3]) )
try( WeightVector(c(1, 2, 'a')) )
wv <- WeightVector(4:1)
as(wv, "numeric")
try( as.numeric(wv) ) # doesn't play well in the methods sandbox
canCoerce(wv, "numeric")
# bug in R core fixed in going from 3.5 to 3.6
ifelse(getRversion() < "3.6.0",
!canCoerce(wv, "double"), # fails in older versions
canCoerce(wv, "double")) # works in newer versions
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