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R function: is.unsorted

v <- c( 1:10, 12:15, 20)

is.unsorted(v)
# [1] FALSE

w <- c(12:15, 1:10, 20)
is.unsorted(w)
# [1] TRUE

u <- sort(v)
is.unsorted(u)
# [1] FALSE
Github repository about-r, path: /functions/is.unsorted.R

See also

Index to (some) R functions

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