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

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Isti
Isti el 26 de Abr. de 2012
Comentada: Walter Roberson el 17 de Abr. de 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 comentarios
Ashley Velasco
Ashley Velasco el 17 de Abr. de 2017
Editada: Ashley Velasco el 17 de Abr. de 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 el 17 de Abr. de 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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Respuesta aceptada

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

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Más respuestas (2)

Isti
Isti el 26 de Abr. de 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 el 26 de Abr. de 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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