how to combine matrix easier
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metumetu
am 11 Mär. 2020
Kommentiert: BobH
am 12 Mär. 2020
Hello,
I want. How can i do this (below code block) with a loop?
I have to do this with a loop because, i will be doing this with a lots of a matrices. please help me.
Thank you.
a1=[1,2,3; 4,5,6; 7,8,9]
a2=[10,11,12; 13,14,15; 16,17,18]
a3=[19,20,21; 22,23,24; 25,26,27]
b1=[a1(:,1);a1(:,2);a1(:,3)]
b2=[a2(:,1);a2(:,2);a2(:,3)]
b3=[a3(:,1);a3(:,2);a3(:,3)]
C=[b1,b2,b3]
2 Kommentare
Ameer Hamza
am 11 Mär. 2020
BobH, the actual problem is that OP wants to do it with lots of matrices, so manually concatenating array will not be practical.
Akzeptierte Antwort
Ameer Hamza
am 11 Mär. 2020
If the data is stored properly, i.e., in cell array instead of using separate variables, the following one-liner will work
a{1}=[1,2,3; 4,5,6; 7,8,9];
a{2}=[10,11,12; 13,14,15; 16,17,18];
a{3}=[19,20,21; 22,23,24; 25,26,27];
C = cell2mat(cellfun(@(x) x(:)', a, 'UniformOutput', 0)')';
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