Search for a specific string in a dataset

2014 3 19
1 个回答
回答已采纳
更新时间：2014 3 19
4 次查看（30 天）

0 个投票

Hi all,
I have a dataset (SDEV) with 4 columns (ID,Name,ImageFile,Tel). I try to create a new dataset with only ID and Name for all data with ImageFile contains only word 'fixed'. My ImageFile contains very long string like 'document/test/fixed/image/001_controlled', 'document/test/shaked/image/001_controlled', etc.
I code like this:
load SDev;
h1 =SDev(SDev.ID==3 & SDev.ImageFile=='.*fixed*',{'ID' 'Name'})
and it gave me error: Undefined function 'eq' for input arguments of type 'cell'.
Thank you in advance.

请先登录，再回答此问题。

 采纳的回答

Image Analyst
Image Analyst 2014-3-19

0 个投票

It probably doesn't like this SDev.ImageFile=='.*fixed*'
ImageFile might be a cell. And you should use strcmpi() instead o f== for comparing strings
strcmpi(char(SDev.ImageFile), '.*fixed*')

1 个评论
显示 -1更早的评论 隐藏 -1更早的评论

Nurul Ain
Nurul Ain 2014-3-19
Hi Image Analyst,
Thank you for your reply. I made correction to my code:
h1 =SDev(SDev.ID==3 & strcmpi(char(SDev.ImageFile), '.*fixed*'),{'ID' 'Name'})
and it return me:
h1 = empty 0-by-2 dataset

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Characters and Strings 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by