Why doesn't the UNIQUE function work with NaNs ?

11 次查看（过去 30 天）
MathWorks Support Team
Why doesn't the UNIQUE function work with NaNs ?
For example:
>> unique([1 2 3 3 4 NaN NaN])
ans =
1 2 3 4 NaN NaN

请先登录，再回答此问题。

采纳的回答

MathWorks Support Team
NaNs are special values in that two NaNs are not equal to each other. For example:
>> NaN==NaN
ans =
0
This is why the NaNs in your vector are treated as different unique elements.
Also, you may wish to note that you can use the ISNAN function to check to data elements for NaNs.
A way to accomplish this functionality would use the attached function TSUNIQUE.

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Data Type Conversion 的更多信息

标签

尚未输入任何标签。

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by