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

Question

Isti 2012-4-26

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https://ww2.mathworks.cn/matlabcentral/answers/36591-how-to-stick-on-augmenting-a-vector-into-the-matrix

评论： Walter Roberson 2017-4-17

If i have a matrix like this:

   1     4     6     2
   4     6     1     2
   3     2     8     3
   2     1     9     3
   1     8     2     4
   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:

    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

what to do? thanks before :')

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Ashley Velasco 2017-4-17

编辑：Ashley Velasco 2017-4-17

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 2017-4-17

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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Answer 1

Walter Roberson 2012-4-26

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NewMatrix = [ones(size(TheMatrix,1),1), TheMatrix];

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Isti 2012-4-26

i'm sorry but it's not suitable in my case. is there any?

thanks

Walter Roberson 2012-4-26

Sorry, I've corrected.

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Answer 2

Isti 2012-4-26

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/36591-how-to-stick-on-augmenting-a-vector-into-the-matrix#answer_45757

then the result is like this:

   1     1     1     1     1     2     1     4     6     2
   1     1     1     1     1     9     4     6     1     2
   1     1     1     1     1     5     3     2     8     3
   1     1     1     1     1     7     2     1     9     3
   1     1     1     1     1     7     1     8     2     4
   1     1     1     1     1     3     5     4     1     2

is there another solution?