CODEWITHSUNDEEP
matlabmatrix
Jarvis
Jarvis

Reputation: 35

How to merge elements in a matrix

x = [1 2 3 4 5
     1 2 3 0 0];

I want to get off all zeros and merge the two rows

newx = x(:,1) + x(:,2)(nonzeros)
     = [1 2 3 4 5 1 2 3];

Upvotes: 1

Views: 58

Answers (2)

beaker
beaker

Reputation: 16791

nonzeros will give you nonzeros in a column vector, you just have to orient the original matrix properly and transpose into a row vector (if that's what you want):

>> newx = nonzeros(x.').'
newx =

   1   2   3   4   5   1   2   3

Upvotes: 3

Sardar Usama
Sardar Usama

Reputation: 19689

newx=x.';        %Taking Transpose
% Converting the given matrix into a column vector and then taking transpose again
% (since you require answer as a row vector)
newx=newx(:).' ; 
newx(newx==0)=[]  %Removing zeros

or using reshape:

newx = reshape(x.',1,[])
newx(newx==0)=[]  %Removing zeros

Result:

newx =

     1     2     3     4     5     1     2     3

Upvotes: 1

Related Questions