Hi, can you help me fix my code? How can I convert this to a matrix using if/while/for statements?

format long G
MERfgh = [];
i = 1;
%for i=1:11
MERfgh(i,1) = MERfff(i,1);
for j=1:11
    MERfgh(i,2) = MERfff(j,1);
    i = i+1;
end
%end
MERfgh

I WANT IT TO LOOK LIKE THIS:

Answer 1

[DGM]

Consider the example:

% some data in a column vector
MERfff = (21:31).';

% rearrange it
[xx yy] = meshgrid(MERfff);
MERfgh = [xx(:) yy(:)]

MERfgh = 121×2

21 21 21 22 21 23 21 24 21 25 21 26 21 27 21 28 21 29 21 30

[James Tursa]

Also consider this example using element-wise raise-to-power:

10.^(-1:1)

ans = 1×3

0.1000 1.0000 10.0000

Answer 2

[dpb]

Use the power of MATLAB; it is, after all, MATrixLABoratory...

format short e; format compact
P=2;        % power range -- use small number for demo so can see output...
x=10.^[-P:P].';
M=[kron(x,ones(size(x))) repmat(x,size(x))]

M = 25×2

1.0000e-02 1.0000e-02 1.0000e-02 1.0000e-01 1.0000e-02 1.0000e+00 1.0000e-02 1.0000e+01 1.0000e-02 1.0000e+02 1.0000e-01 1.0000e-02 1.0000e-01 1.0000e-01 1.0000e-01 1.0000e+00 1.0000e-01 1.0000e+01 1.0000e-01 1.0000e+02