Adding elements to an array
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Ok, so how do you place elements of one array into another array, so that they are included in either the beginning of the array or the end of the array?
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topdawgnate
2011-9-21
编辑：MathWorks Support Team
2018-11-8
There are many ways to join elements of two arrays. For example, let’s say you have two 2-by-2 matrices A and B:
A = [1 2; 3 4];
B = [5 6; 7 8];
Then the following commands concatenate B to the end of A horizontally:
H1 = [A B]
H2 = horzcat(A,B)
H3 = cat(2,A,B)
The first argument in the cat function (2) tells it to add B as additional columns of A.
These commands concatenate B to the end of A vertically:
V1 = [A; B]
V2 = vertcat(A,B)
V3 = cat(1,A,B)
The 1 tells cat to add B as additional rows of A.
For additional concatenation examples, see:
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YU-CHENG HUANG
2017-9-29
5 个投票
just using c = [a , b]
ex: a = [1 2 3] b = [4 5 6] c = [a,b]
--> c = [1 2 3 4 5 6]
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