isMonotonicIncreasing
语法
isMonotonicIncreasing(X)
参数
X 可以是标量或向量。
详情
判断 X 是否为单调递增。
例子
$ a = [2023.01M,2023.02M,2023.03M,2023.04M,2023.05M,2023.06M]
$ isMonotonicIncreasing(a);
true
$ a = [1,3,6,5,7,9]
$ isMonotonicIncreasing(a);
false
$ a = [1,3,3,5,7,9]
$ isMonotonicIncreasing(a);
true
$ a = [NULL,1,3,5,7,9]
$ isMonotonicIncreasing(a);
true
$ a = [1,3,5,NULL,7,9]
$ isMonotonicIncreasing(a);
false