So how do you make MAtlab into a responding program?

2013 9 15
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更新时间：2013 9 30
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I Want to make a program that can respond back to you with words. I found one way but its annoying. I need to put (' ') Around the words I type and the it response but I just want to type the words and it give off a correct responses. Any good examples to make this work?

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Walter Roberson
Walter Roberson 2013-9-15

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Use input with the 's' option to request the responses
din = input('What did you have for dinner?', 's');

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Rainaire Hansford
Rainaire Hansford 2013-9-20
Not exactly what i meant. What I really was looking for was if I say hello, hey or hi, it will give me a respond for either of them. For Example I have din = input(' ', 's'); if din <= 'Hello' fprintf('Hello sir'); if din <= 'Hi' fprintf('Hi there'); end end. Now it works for the first one (Hello) but when I type hi it say something like matrix error or some stuff. I want it to work for both.
Matt Kindig
Matt Kindig 2013-9-20
编辑：Matt Kindig 2013-9-20
Don't use the <= operator. The reason you get the matrix error is because din cannot have both 5 characters (as it does if din=='Hello') and 3 characters (as if din=='Hi'), as your code assumes. That is the source of your matrix size error.
Use strcmp() (or strcmpi()) instead:
if strcmpi(din, 'Hello'),
fprintf('Hello sir');
elseif strcmpi(din, 'Hi'),
fprintf('Hi');
end
Rainaire Hansford
Rainaire Hansford 2013-9-25
Thanks guys it work now let say I want to make it respond to any word for ex.
if strcmpi(din, 'Hello','Hi','Whats up')
This obiviously doesnt work but I think you understand when I mean that. Like if i make any of these responds it will send back the same responds. How could i do that
Rainaire Hansford
Rainaire Hansford 2013-9-29
Yeah that's not working like I planned any other suggestions.
Walter Roberson
Walter Roberson 2013-9-30
if any(strcmpi(din, {'Hello', 'Hi', 'Whats up'}))

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