Reshape a matrix into vector using rows

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Mitchel Stewart
Mitchel Stewart 2020-2-29
评论： Mitchel Stewart 2020-2-29
How do I reshape a matrix into a vector where each row is positioned end to end?
%example 2d matrix
a = [1 2;3 4]
%this version reshapes columns not rows
b = reshape (a,[1,4])
The result I am looking for is:
Thanks for any assistance.
b = 1 2 3 4

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James Tursa
James Tursa 2020-2-29
编辑：James Tursa 2020-2-29
b = reshape(a.',1,4);
MATLAB array memory is column-wise, so in memory the "a" elements are stored 1,3,2,4. The transpose puts the elements in memory in the order 1,2,3,4 so that the reshape works as you want.

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