x = X(training(c,1),:);

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AngXuman Xarma 2016-4-29

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编辑： Stephen23 2016-4-29

What is the meaning of the function X()? How is it used?

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Stephen23 2016-4-29

Duplicate question:

http://www.mathworks.com/matlabcentral/answers/281664-meaning-of-x-x-training-c-1

Stephen23 2016-4-29

编辑：Stephen23 2016-4-29

@AngXuman Xarma: this and your other question indicate that you need to learn some very basic MATLAB concepts. You should start by doing these tutorials (which will also answer both of your questions!):

http://www.mathworks.com/help/matlab/getting-started-with-matlab.html

and read this:

http://www.mathworks.com/matlabcentral/answers/228557-experts-of-matlab-how-did-you-learn-any-advice-for-beginner-intermediate-users

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Answer 1

Stephen23 2016-4-29

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https://ww2.mathworks.cn/matlabcentral/answers/281661-x-x-training-c-1#answer_220049

X is not a function, it is a variable.

I explained this in my answer to your other question:

http://www.mathworks.com/matlabcentral/answers/281664-meaning-of-x-x-training-c-1

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