Problem with making a matrix of size [2 2 4 2] , need help

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if true
% I want to make a matrix of this size( 2 2 4 2) from this following data set
Data = [12.2537 13.4153
10.3552 12.3899
9.5644 12.1267
0.8660 0.5590
4.4718 5.1405
4.1300 3.7492
4.0248 3.0958
0.5590 0.5000
6.9277 6.9114
6.2339 6.2827
6.0672 6.1021
0.3535 0.4146
13.8229 5.1168
12.5654 4.3318
12.2043 4.1110
0.4146 0.4330]
for i=1:2
for j=1:2
for k=1:4
for m=1:2
A_int(i,j,k,m) = Data(i,j,k,m)
end
end
end
end
and I want to allocate this to A_int, I have tried something like that but it doesn't work Can somebody help me in this please Regards, end

Accepted Answer

John D'Errico
John D'Errico on 22 May 2014
It is time to learn how to use reshape.
help reshape
As importantly, you need to understand that you cannot index an 8x2 array with four indexes as you have tried. MATLAB cannot read your mind.
  2 Comments
John D'Errico
John D'Errico on 22 May 2014
Never copy numbers like this with loops.
reshape(A,[2 2 4 2])
If the numbers are not in the order you wanted, then learn to use permute.

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More Answers (2)

Harshvardhan
Harshvardhan on 22 May 2014
reshape(Data, [2 2 4 2])
Does that do that job for you?

Yao Li
Yao Li on 22 May 2014
Data is a 16 x 2 matrix, so Data(i,j,k,m) is wrong.

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