MATLAB: Converting 2D matrix to 3D matrix

2d matrix to 3d matrix conversion

I have a 3529 x 2 2D matrix. how can I convert it into a 3D matrix? please help.

Best Answer

out = reshape(your_matrix,size_of_your_new_3D_matrix)

Related Solutions

MATLAB: How to properly sum 3D matrixes

Use this function:

function M=sumnd(M,dim)
s=size(M);
M=permute(M,[setdiff(1:ndims(M),dim),dim]);
M=reshape(M,[],s(dim));
M=sum(M,2);
s(dim)=1;
M=reshape(M,s);
end

Code:

A=sumnd(M,3) ;
A = simplify(A) ;

Result:

[ x1*y1*(z1 + z2 + z3), x1*y2*(z1 + z2 + z3), x1*y3*(z1 + z2 + z3)]
[ x2*y1*(z1 + z2 + z3), x2*y2*(z1 + z2 + z3), x2*y3*(z1 + z2 + z3)]
[ x3*y1*(z1 + z2 + z3), x3*y2*(z1 + z2 + z3), x3*y3*(z1 + z2 + z3)]

MATLAB: How to call vector in matrix with condition

Maybe something like this :

m=[1 2 3 10;4 5 6 15;7 8 9 20]
m=
   1     2     3    10
   4     5     6    15
   7     8     9    20
result=m(ismember(m(:,size(m,2)),[15;20]),1:end-1)
result = 
     4     5     6
     7     8     9

or a second example :

m=[1 2 3 4 5 50;7 8 9 10 11 50;12 13 14 15 16 60]
m =
     1     2     3     4     5    50
     7     8     9    10    11    50
    12    13    14    15    16    60
result=m(ismember(m(:,size(m,2)),50),1:end-1)
result =
     1     2     3     4     5
     7     8     9    10    11

Best Answer

Related Solutions

MATLAB: How to properly sum 3D matrixes

MATLAB: How to call vector in matrix with condition

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