How introduce a little matrix in a big matrix

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Isabel Aldana Benavides
回答： Ameer Hamza 2020-4-26
Hello,
in this moment i have that problem:
I have a matrix of 2400 columns and 8 rows, and every column should go stored in a big matrix of 2400 columns and 546 rows, the little matrix have the position of the row in the should go stored in a big matrix, so, i need the big matrix with the little matrix stored.
Thanks!!

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回答（1 个）

Ameer Hamza
Ameer Hamza 2020-4-26
You can use indexing to place a small matrix inside a larger matrix. For example
M_large = rand(564, 2400);
M_small = rand(8, 2400);
first_row = 11; % suppose you want to start M_small at row number 11 in M_large
M_large(first_row:first_row+7, :) = M_small;

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