How to extract the first part of an array of strings by pattern?

2 次查看（过去 30 天）
JFz
JFz 2017-5-25
评论： Image Analyst 2017-5-25
Hi,
I have an array of strings: L_Name. Each string has several "_" in it. I would like to have an array that take the first part in each string by '_'. I tried to use strfind, or reg, but just cannot get it.
How to do that? Thanks! JF

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2017-5-25
编辑：Stephen23 2017-5-25
If you want the part of the string before the first underscore '_', then you can use regexp:
>> C = {'L_Name','Z_Y_X','Aaaa_BBBB','MMM'};
>> D = regexp(C,'[^_]+','once','match');
>> D{:}
ans = L
ans = Z
ans = Aaaa
ans = MMM
>>
  2 个评论
Image Analyst
Image Analyst 2017-5-25
The nice thing is, it also works for an array of strings (the new string data type that MATLAB now has) in addition to the cell array Stephen showed:
C = ["L_Name","Z_Y_X","Aaaa_BBBB","MMM"]
D = regexp(C,'[^_]+','once','match');
D{:}

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Characters and Strings 的更多信息

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