Rearrange a given array

I have a 1×16 array as follow :

A = 1×16

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

And I want to rearrange it like :

A' = 4×4

16 12 8 4

15 11 7 3

14 10 6 2

13 9 5 1

Could some tell me how to do it by any method? thanks alot !!!

Answer 1

[Voss]

% A = [1     2     3     4
%      5     6     7     8
%      9    10    11    12]
% A = A.';
% A = reshape(A(end:-1:1),3,[])
A = [1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16]

A = 1×16

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

A = reshape(A(end:-1:1),4,[])

A = 4×4

16 12 8 4 15 11 7 3 14 10 6 2 13 9 5 1

[Anthony Chu]

thanks!!!

[Voss]

You're welcome!

Answer 2

[Arif Hoq]

A=[1 2 3 4 5 6 7 8 9 10 11 12];
B=flip(A) % flip

B = 1×12

12 11 10 9 8 7 6 5 4 3 2 1

out=reshape(B,3,4)  % row number=3 and column number=4

out = 3×4

12 9 6 3 11 8 5 2 10 7 4 1

[Anthony Chu]

thanks a lot !

Answer 3

[Sulaymon Eshkabilov]

A = [1     2     3     4
     5     6     7     8
     9    10    11    12];
 B = sort(A(:), 'descend');
 C= reshape(B, 3,4)

C = 3×4

12 9 6 3 11 8 5 2 10 7 4 1

[Anthony Chu]

thanks!