2D matrix to 3D

Can anyone help me with making a 2D matrix into a 3D matrix?I have aI have a (616*780) 2d matrix and I need to make a 3D matrix of dimensions (616*780 x M) I need to take (616*780) consecutive matrices by row for layers,where M is the max value in the 2d matrix. Means I want to slice the 2D matrix.

I would appreciate it if anyone could help me! Thank you very much!

Answer 1

[KALYAN ACHARJYA]

Here I used the multidimetional arrays

mat1(:,:,1)=[1,2,3,4; 5,6,7,8; 9,10,11,12];
mat1(:,:,2)=[1,2,3,4; 5,6,7,8; 9,10,11,12];
mat1(:,:,3)=[1,2,3,4; 5,6,7,8; 9,10,11,12];
disp(mat1);

Result:

(:,:,1) =
     1     2     3     4
     5     6     7     8
     9    10    11    12
(:,:,2) =
     1     2     3     4
     5     6     7     8
     9    10    11    12
(:,:,3) =
     1     2     3     4
     5     6     7     8
     9    10    11    12

Check?

>> whos mat1
  Name      Size             Bytes  Class     Attributes
  mat1      3x4x3              288  double              
>> 

[Chaodong Li]

Thank you very much.But my two dimensional matrices have different values.I'm actually representing terrain information in a two-dimensional matrix,evey value is elevation.Can i still use that notation?and how to write the code?

[madhan ravi]

Huh?

Answer 2

[madhan ravi]

repmat(a,1,1,max(a(:))) % where a is your matrix if you have decimals in your matrix then use round function for max() to make the max value as an integer