Julia issorted用法及代碼示例

issorted(v, lt=isless, by=identity, rev::Bool=false, order::Ordering=Forward)

測試向量是否按排序順序。 lt 、 by 和 rev 關鍵字修改被認為是排序的順序，就像它們對 sort 所做的那樣。

例子

julia> issorted([1, 2, 3])
true

julia> issorted([(1, "b"), (2, "a")], by = x -> x[1])
true

julia> issorted([(1, "b"), (2, "a")], by = x -> x[2])
false

julia> issorted([(1, "b"), (2, "a")], by = x -> x[2], rev=true)
true