Choosing columns to create a matrix

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ebdilden
ebdilden 2020-5-24
评论： ebdilden 2020-5-24
Hi everyone!
I have a column matrix, A=(28400x1). From this column matrix A, I want to choose the first 200 hundred observations and create a transpose matrix. The tranposed matrix size will be 142x200.
I tried to write down a loop but I am having an issue:
first=1;
last=1;
for i=id(i);
last=i*200;
finish=id(i);
t_child(i,:)=child(first:last,:)';
first=last+1;
start=finish+1;
end
Can you please help me to write this loop and create a matrix?

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Image Analyst
Image Analyst 2020-5-24
Did you try reshape:
output = reshape(A, 200, [])';

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