Change a 3x100 double to a 300x1 double

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Hollis Williams
Hollis Williams on 24 Mar 2019
Edited: madhan ravi on 24 Mar 2019
I have a 3 x 100 double ie. 100 column vectors next to each other all with 3 rows, and I need to take each column vector and put them all on top of each other in one long 300 x 1 column vector, what would be the easiest way of doing this?
I appreciate there is help material on idexing matrices but I could not find anything which particularly explains how to do this.

Accepted Answer

madhan ravi
madhan ravi on 24 Mar 2019
reshape(a.',[],1) % a is of size 3 X 100
  2 Comments
madhan ravi
madhan ravi on 24 Mar 2019
a = [ 1 8 9 ;...
2 6 4 ;...
4 2 3 ]
Result = reshape(a,[],1)
%or
Result = a(:)
Gives:
Result =
1
2
4
8
6
2
9
4
3

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