MATLAB: Selecting specific rows from a matrix corresponding to the columns of other matrix

specific row selection

Hello,
I have matrix A(40×2) and a big Matrix B (25000×9). suppose my matrix A is like
250 300
356 407
433 489 and so on..I need to select rows corresponding to these columns (i.e. 250 to 300, again 356 to 407) from matrix B and put it to matrix C.
Can anyone please suggest me how to do that? Thanks in advance.

Best Answer

Let A abd B be your matrices of size 40*2 and 25000*9. 
[m,n] = size(A) ; 
C = cell(m,1) ; 
for i = 1:m
    C{i} = B(A(i,1):A(i,2),:) ; 
end
C = cell2mat(C) ;
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