Undefined function 'contains' for input arguments of type 'char'

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JFz
JFz 2017-1-23
评论： JFz 2017-1-23
Hi,
I am trying to use contains to check if string A has string B in it. Say, A = 'XYZXYZ', B = 'XY', I am using: tf = contains(A, B); But I keep getting error "Undefined function 'contains' for input arguments of type 'char'" Why?
Thanks in advance for any help. Jennifer

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the cyclist
the cyclist 2017-1-23
编辑：the cyclist 2017-1-23
Are you using an older version of MATLAB? According to the documentation for contains, this function was introduced in version R2016b.
You might be able to use strfind instead.

更多回答（1 个）

Geoff Hayes
Geoff Hayes 2017-1-23
Jennifer - which version of MATLAB are you using? According to contains, this function was introduced in R2016b.

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