Need help inputing words

조회 수: 2 (최근 30일)
Samy Ben Thabet
Samy Ben Thabet 2018년 10월 9일
댓글: Image Analyst 2018년 10월 9일
I want to ask my user to input a shape:
h=input('What shape do you want?:');
if h==square;
disp(h)
But this never works, Matlab shows me the following error message: "'square' requires Signal Processing Toolbox."
Can someone help me find a way to make this work please :)

채택된 답변

Star Strider
Star Strider 2018년 10월 9일
You need to add the 's' to the input argument list, and then use strcmp for the comparison.
Try this:
h=input('What shape do you want?:', 's');
if strcmp(h, 'square')
sprintf('SQUARE!')
end
  댓글 수: 1
Image Analyst
Image Analyst 2018년 10월 9일
If you can't use contains() like in my answer because your version of MATLAB is too old, then you can make this more robust by using strcmpi() instead of strcmp() and use strtrim() in case the user put any leading or trailing spaces on their response:
h = input('What shape do you want? ', 's');
if strcmpi(strtrim(h), 'square')
fprintf('SQUARE!\n')
end

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추가 답변 (1개)

Image Analyst
Image Analyst 2018년 10월 9일
Try using contains():
clc;
userResponse = input('What shape do you want? ', 's')
if contains(userResponse, 'square', 'IgnoreCase', true)
uiwait(helpdlg('You want a square.'));
else
message = sprintf('%s is an unrecognized response.\nTry again.', userResponse);
uiwait(warndlg(message));
end

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