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How Can I union four non-equal size vector in matlab?

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Jamal
Jamal 2013-11-17
评论： Jamal 2013-11-17
Hi I want to write Finite element MATLAB code. I want to union 4 vectors that they are different in their sizes. I used "unique" command, however; My program has this Error:
"Error using horzcat Dimensions of matrices being concatenated are not consistent."

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采纳的回答

Andrei Bobrov
Andrei Bobrov 2013-11-17
A=[1 2 3 4 5];
B=[7 4 5];
C=unique([A(:);B(:)])

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Mohammad Monfared
Mohammad Monfared 2013-11-17
To union two vectors they should be of the same kind, row vectors or column vectors.
if they are row vectors;
v=[v1, v2];
if they are column vectors:
v=[v1; v2];
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Mohammad Monfared
Mohammad Monfared 2013-11-17
编辑：Mohammad Monfared 2013-11-17
In this case size does not matter and you can switch between column and row vector as:
v=v' ;
two additional functions are also available which are isrow() and iscolumn(). They are useful when you don't know if a vector is in row or column shape.
Jamal
Jamal 2013-11-17
for Example: A=[1 2 3 4 5] B=[7 4 5] union array that I want C=[1 2 3 4 5 7]
C=unique([A,B])
however, I received Error from Matlab, because they are not consistent.

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