MATLAB: Eliminate zero elements and separate into different matrix

eliminate zero elements

if i have a matrix like [0 0 0 0 1 2 3 0 0 3 2 0 0 0 3 4 4 5 0],how can I get three matrix [1 2 3];[3 2] and [3 4 4 5].

Best Answer

A=[0 0 0 0 1 2 3 0 0 3 2 0 0 0 3 4 4 5 0]
idx=A~=0
ii1=strfind([0 idx],[0 1])
ii2=strfind([idx 0],[1 0])
out=arrayfun(@(x,y) A(x:y),ii1,ii2,'un',0)
celldisp(out)

Related Solutions

MATLAB: How to extract not zero numbers from a matrix

M=[0 1 2 5 2 3 0 0 0 0 4 3 2 5 0 0 0 4 3 2 ];
idx=[0 M~=0 0];
ii1=strfind(idx,[0 1]);
ii2=strfind(idx,[1 0])-1;
out=arrayfun(@(ii,jj) M(ii:jj),ii1,ii2,'un',0);
celldisp(out)

MATLAB: How to remove unwanted zeros from a vector

v = [ 0 0 0 0 4 5 6 0 0 0 9 9 8 7 6 0 0 0 0 0 0 3 4 4 0 0 0];
d = [1 diff(v)]; % 0's indicate when the value didn't change
x = d==0 & v==0; % Indexes where value is 0 and didn't change
v(x) = []; % Remove the indexes associated with x

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