MATLAB Answers

Find cell containing part of a string

조회 수: 38(최근 30일)
KAE
KAE 26 Oct 2017
댓글: KAE 27 Oct 2017
I would like to find the elements of a cell array that contain part of a specified string.
colorList = {'Red', 'Green', 'Blue', 'Purple'}; % List of values to match with
stringToCheck = 'Blue 23948723'; % String we are trying to match
I would like to return index=3 of colorList since that entry contains the stringToCheck text of 'Blue'. How can I do this?

채택된 답변

Cedric Wannaz
Cedric Wannaz 26 Oct 2017
편집: Cedric Wannaz 26 Oct 2017
If you cannot assume that keywords are separated by white spaces:
>> find(cellfun(@(x)~isempty(strfind(stringToCheck,x)), colorList))
ans =
3
  댓글 수: 2
Cedric Wannaz
Cedric Wannaz 26 Oct 2017
My pleasure!

댓글을 달려면 로그인하십시오.

추가 답변(2개)

per isakson
per isakson 26 Oct 2017
편집: per isakson 26 Oct 2017
>> find( ismember( colorList, strsplit( stringToCheck ) ) )
ans =
3
or
>> find( ismember( colorList, strsplit( stringToCheck, {'\s','\.',','} ...
, 'CollapseDelimiters',true, 'DelimiterType','RegularExpression' ) ) )
ans =
3
if the color name is followed by a period or comma, e.g. "Blue.". And what about upper and lower case, e.g "blue"? And "Bluetooth"?
  댓글 수: 1
KAE
KAE 26 Oct 2017
Thank you, this works and your scenarios are useful too.

댓글을 달려면 로그인하십시오.


Akira Agata
Akira Agata 26 Oct 2017
If your MATLAB is R2016b or later version, you can use contains function, like:
idx = cellfun(@(x) contains(stringToCheck,x),colorList);
The answer is:
>> colorList(idx)
ans =
{'Blue'}
  댓글 수: 1
KAE
KAE 27 Oct 2017
Thank you, this syntax is easier to read and thus remember than then other ones.

댓글을 달려면 로그인하십시오.

태그

Community Treasure Hunt

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

Start Hunting!

Translated by