Reflexion to a 100 X 100 X 28 cubic matrix

Hello,

please I'd like to apply a X-Z plane reflexion to a 100 X 100 X 28 cubic matrix (3D) stored in a vector of 280000 cells,

the X-Z plane of reflexion passing through the middle of the matrix at y = 50.

please is there any code ?

Many thanks

Answer 1

[Matt J]

M_flipped = flipdim(M,2);

Answer 2

[Walter Roberson]

Something like

M(:,end/2:-1:1,:) = M(:,end/2+1:end,:)

?