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selecting specific rows from a matrix corresponding to the columns of other matrix

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SBS
SBS on 19 Feb 2020
Commented: SBS on 19 Feb 2020
Hello,
I have matrix A(40x2) and a big Matrix B (25000x9). 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.

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Accepted Answer

KSSV
KSSV on 19 Feb 2020
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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