how to write a function?

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?

[madhan ravi]

Which row corresponds and why???

[Sky Scrapper]

Look, I have searched the 1st row from column 4 to 11 and it's showing the total 1st row. I will have to search randomly from any rows within column 4 to 11, Say, if i search for the 3rd row:

0 1 1 0 0 1 0 1

then it will show:

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

[Star Strider]

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]

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.

Answer 1

[Guillaume]

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.

[Sky Scrapper]

Thanks!