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How to stick on/augmenting a vector into the matrix?

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Isti
Isti am 26 Apr. 2012
Kommentiert: Walter Roberson am 17 Apr. 2017
If i have a matrix like this:
2 1 4 6 2
9 4 6 1 2
5 3 2 8 3
7 2 1 9 3
7 1 8 2 4
3 5 4 1 2
then i want to stick on a vektor contain of "1" in the beginning of that matrix. so it'll be like this:
1 2 1 4 6 2
1 9 4 6 1 2
1 5 3 2 8 3
1 7 2 1 9 3
1 7 1 8 2 4
1 3 5 4 1 2
what to do? thanks before :')
  2 Kommentare
Ashley Velasco
Ashley Velasco am 17 Apr. 2017
Bearbeitet: Ashley Velasco am 17 Apr. 2017
I'm a student just learning how to use MATLAB... but I'm pretty sure you can use the horzcat function to do it easily. Matlab has documentation on it.
https://www.mathworks.com/help/matlab/ref/horzcat.html
Walter Roberson
Walter Roberson am 17 Apr. 2017
The [] operator defaults to horzcat, so the solution I listed
[ones(size(TheMatrix,1),1), TheMatrix]
is really the same as
horzcat( ones(size(TheMatrix,1),1), TheMatrix)

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Akzeptierte Antwort

Walter Roberson
Walter Roberson am 26 Apr. 2012
NewMatrix = [ones(size(TheMatrix,1),1), TheMatrix];
  2 Kommentare
Isti
Isti am 26 Apr. 2012
i'm sorry but it's not suitable in my case. is there any?
thanks
Walter Roberson
Walter Roberson am 26 Apr. 2012
Sorry, I've corrected.

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Weitere Antworten (2)

Isti
Isti am 26 Apr. 2012
then the result is like this:
1 1 1 1 1 1 2 1 4 6 2
1 1 1 1 1 1 9 4 6 1 2
1 1 1 1 1 1 5 3 2 8 3
1 1 1 1 1 1 7 2 1 9 3
1 1 1 1 1 1 7 1 8 2 4
1 1 1 1 1 1 3 5 4 1 2
is there another solution?

ike
ike am 26 Apr. 2012
yours= [ 2 1 4 6 2; 9 4 6 1 2; 5 3 2 8 3; 7 2 1 9 3; 7 1 8 2 4; 3 5 4 1 2]
add=ones(6,1); concat=[add yours]
try this....

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