please help me sort this out

please can someone help me with a very simple coding... i know its simple but i'm not getting...

i 2 matrix with dimensions below,

 A = with 13 rows and 125 columns
 B = with 1 row and 125 column,

i want to find which row of A matches with B if it does not match, i want to get the row which matches with most columns of B

please someone help me to sort it out, eg if A is,

 34    44    55     66
 23    33    22     27
 21    44    66     34

 if B = 23 33 22 27 i want ans = 2

 if B = 27 44 66 34 i want ans = 3

Answer 1

[Azzi Abdelmalek]

A=[4    44    55     66
23    33    22     27
21    44    66     34]
B=[23 33 22 27]
[~,ii]=max(sum(ismember(A,B),2))

[Elysi Cochin]

so simple... thank you so much sir.... i was using for loop and if condition.... great!!! you just did that in one line..... thank you so much sir....

[Jos (10584)]

+1 Azzi

However, note that this does not care about the column order, which may or may not matter.

% Which row of A matches B the most?
A = [1 2 3 5 ; 
     4 3 2 1]
B = [1 2 3 4]

Answer 2

[Jos (10584)]

When column number does matter:

% A : a N-by-M array
% B : a 1-by-N row vector
[~, ii] = max(sum(bsxfun(@eq,A,B),2))
RESULT = A(ii,:)

[Elysi Cochin]

thank you so much for explaining me the difference....