how to pick the number in my command window

hi there, i need to pick the number from my command window. how to do this. here, i attach the illustration picture for further understanding and more explanation. i hope everyone can understand what i mean.

 http://i1259.photobucket.com/albums/ii548/msaiful89/result.png

Answer 1

[Wayne King]

Use find() on the second column of the matrix with the 'first' option, then use that index to return the corresponding value in the first column of the matrix.

   X = randi([5 20],10,2);
   I = find(X(:,2)>10,1,'first');
   X(I,1)

[mohd]

a lot of thanks for help me,can you explain the code mr Wayne King:-). i need to learn from you.

X = randi([5 20],10,2);

why there are number ([5 20],10,2).

[Wayne King]

I just created some data to illustrate how to do it since I don't have your data and that is easier than me copying off your figure. I just created a 10x2 matrix of random integers between 5 and 20 with that. You don't need that line, you only need the lines:

I = find(X(:,2)>10,1,'first');

X(I,1)

but obviously, you need to use the name of your matrix.

[mohd]

ok.. thanks a lot sir.. now i'm understand what is it. :-). that mean i need use my matrix. ok. i'm get it.