add a row to a matrix each loop

Question

james sinos 2021-9-12

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1451689-add-a-row-to-a-matrix-each-loop

回答： Matt J 2021-9-12

lets say i have a matrix somthing liek that:

for each loop there is a search for solutions,

if a solution is found for a, iteration loop it will be added as new row in the matrix , othere wise it will pass to find another solution .

how we can proceed ?

thanks

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Answer 1

Matt J 2021-9-12

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1451689-add-a-row-to-a-matrix-each-loop#answer_785834

在 MATLAB Online 中打开

Just concatenate:

A=eye(5)
A = 5×5
     1     0     0     0     0
     0     1     0     0     0
     0     0     1     0     0
     0     0     0     1     0
     0     0     0     0     1
newrow=rand(1,5);
A=[A;newrow]
A = 6×5
    1.0000         0         0         0         0
         0    1.0000         0         0         0
         0         0    1.0000         0         0
         0         0         0    1.0000         0
         0         0         0         0    1.0000
    0.5232    0.3248    0.2297    0.4854    0.3321