How to concatenate a (REAL) string vector?

2021 4 22
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更新时间：2021 4 22
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I have a string matrix i.e.
A=["abcd",.....,"efghijk";...
. ...
. ...
. ...
"lm",......, "opkq"];
How to concatenate easily the rows of this matrix to get the result:
"abcdefghijk"
.
.
.
"lmopkq"
as a column vector?

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Stephan
Stephan 2021-4-22
编辑：Stephan 2021-4-22
Ran in:

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Ran in:
A=["abcd","efghijk"; "lm", "opkq"]
A = 2×2 string array
"abcd" "efghijk" "lm" "opkq"
B = A(:,1) + A(:,2)
B = 2×1 string array
"abcdefghijk" "lmopkq"
The more general solution (independent from number of rows or columns of your input is:
A=["abcd","efghijk", "1111"; "lm", "opkq", "2222"; "fdds<jgf", "dfkjf", "ldfkj"; "<ksajfjf", "fjjf", "fkkgfkdsw43"]
A = 4×3 string array
"abcd" "efghijk" "1111" "lm" "opkq" "2222" "fdds<jgf" "dfkjf" "ldfkj" "<ksajfjf" "fjjf" "fkkgfkdsw43"
B = join(A,'',2)
B = 4×1 string array
"abcdefghijk1111" "lmopkq2222" "fdds<jgfdfkjfldfkj" "<ksajfjffjjffkkgfkdsw43"

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Csaba
Csaba 2021-4-22
编辑：Csaba 2021-4-22
That is really easy, however if you have n columns that would make the life more difficult. I do not want a special case, I would like to have more universal. Also I know that a for cycle would do it, but I want to do without for cycle. In numerical matrices sum(A) would do it, but it does not work for string vectors (BTW why not?? Formally it is the same, the '+' sign does the thing).
I have edited my question to make it clear! Sorry about wrongly (I mean not universally) put question!
Csaba
Csaba 2021-4-22
Yeah! Thank you. Join was the command I was looking for!
Please make it an answer to accept it!
Stephan
Stephan 2021-4-22
i edited the answer so that it is inside my answer
Stephen23
Stephen23 2021-4-22
编辑：Stephen23 2021-4-22
Ran in:
Ran in:
ERASE is superfluous**, simply specify both the delimiter and dimension:
A=["abcd","efghijk", "1111"; "lm", "opkq", "2222"; "fdds<jgf", "dfkjf", "ldfkj"; "<ksajfjf", "fjjf", "fkkgfkdsw43"];
B = join(A,'',2)
B = 4×1 string array
"abcdefghijk1111" "lmopkq2222" "fdds<jgfdfkjfldfkj" "<ksajfjffjjffkkgfkdsw43"
** and incorrect: consider what would happen if the strings themselves contain spaces.
Stephan
Stephan 2021-4-22
编辑：Stephan 2021-4-22
Thank you @Stephen Cobeldick - i edited the incorrectness

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