How do I compare two large matrices?

Hi I'm new to matlab and was wondering how to compare two matrices

Basically I have one matrix that is 950x49 and one that is 950x1 I want to compare the two matrices to bring back the 10 closest values of each column of x that is compared with y, into a new matric 'new'. If anyone could please help, it would greatly be appreciated!

[José-Luis]

Should the values be in the same line?

[Premal]

nope they just have to be the 10 closest values in each column!

Answer 1

[Rick Rosson]

   N = size(x,2);
   u = ones(1,N);
   d = abs(x - y*u);
   v = sort(d);
   z = v(1:10,:);

[Premal]

thank you so much!!! Is there anyway to get the value of x that was closest into z rather than the difference?

Answer 2

[Roger Stafford]

Just modify Rick's code a bit:

   m = 10;
   [~,p] = sort(abs(bsxfun(@minus,x,y)),2);
   new = zeros(size(x,1),m);
   for i = 1:N
     new(i,:) = x(i,p(i,1:m));
   end