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Why is it showing: Undefined function or variable 'removeStopWords'.

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Saugata Bose
Saugata Bose 2018-11-5
评论： Christopher Creutzig 2018-11-26
Dear I am using R2017B with text analytics software installed(I have checked by searching get add-ons). I have written a simpole function which is following:
function x=test()
s='i am a boy and u r a grl';
disp(removeStopWords(s));
end
And it shows the following error:
Undefined function or variable 'removeStopWords'.
Would you please shed light on this issue explaining why is this happening?
Thanks,

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回答（2 个）

Walter Roberson
Walter Roberson 2018-11-5
https://www.mathworks.com/help/textanalytics/ref/tokenizeddocument.removestopwords.html
Introduced in R2018b
madhan ravi
madhan ravi 2018-11-5
编辑：madhan ravi 2018-11-5
An example of the correct usage as documented
function x=test() %EDITED
s= tokenizedDocument([ 'i am a boy and u r a grl']);
disp(removeStopWords(s));
end
  11 个评论
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madhan ravi
madhan ravi 2018-11-5
So it appears that you have Text Analystics Toolbox so that best option is to contact Mathworks support team by pressing the Contact Us button on the on right corner of this page. They will guide you further.
Christopher Creutzig
Christopher Creutzig 2018-11-26
removeStopWords does not work on strings or char vectors, only on tokenizedDocument.
The way MATLAB searches for functions means that it will only find removeStopWords if you have a tokenizedDocument in your workspace.
>> clear all
>> which removeStopWords
'removeStopWords' not found.
>> td = tokenizedDocument;
>> which removeStopWords
[..]/matlab/toolbox/textanalytics/textanalytics/tokenizedDocument.m % tokenizedDocument method

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