how to write a function?

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Sky Scrapper 2019-1-24

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/441283-how-to-write-a-function

评论： Sky Scrapper 2019-1-28

采纳的回答： Guillaume

在 MATLAB Online 中打开

I have a matrix:

A= [0    80	-100      0	1	0	1	0	1	0	1 ;...
    0	   0	0	  0	1	0	1	1	0	1	0 ;...
   -100  0	0	  0	1	1	0	0	1	0	1 ;...
   -100  100	0	  0	1	1	0	1	0	1	0 ;...
    100  0   -100       1	0	0	1	0	1	0	1 ;...
    100  0	0	  1	0	0	1	1	0	1	0 ;...
    0	   0	0	  1	0	1	0	0	1	0	1 ;...
    0	   100	0	  1	0	1	0	1	0	1	0 ]

Now i need to make a function if i type:

0 1 0 1 0 1 0 1

then it will show the corresponding total row. so, it'll show:

0 80 -100 0 1 0 1 0 1 0 1

But i don't know how to do. Can anyone please help me?

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Star Strider 2019-1-24

The result you want is simply the first row of ‘A’.

Is the argument vector you want to enter in your function some sort of code that the function has to interpret?

Sky Scrapper 2019-1-24

编辑：Sky Scrapper 2019-1-24

I will enter the value (of column 4 to 11), it will search the whole matrix and find out in which row that given data is found and will show.

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采纳的回答

Guillaume 2019-1-24

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/441283-how-to-write-a-function#answer_357855

在 MATLAB Online 中打开

tofind = [0, 1, 1, 0, 0, 1, 0, 1];
found = A(ismember(A(:, 4:11), tofind, 'rows'), :)

will return all the rows of A whose columns 4 to 11 match tofind.

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Sky Scrapper 2019-1-28

Thanks!

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