Extract multiple matrices from an array by excluding specified numbers.

조회 수: 4 (최근 30일)
Let's say i got an array like [0 0 0 3 5 7 2 1 4 0 0 0 4 7 8 5 2 4] .
I want to build matrices excluding all zeroes and get 3x2 matrices with remaining values like
A = 3 2 & B= 4 5
5 1 7 2
7 4 8 4
How can this be done? Thanks.

채택된 답변

David Fletcher
David Fletcher 2021년 5월 22일
편집: David Fletcher 2021년 5월 22일
Will do the job in this case, but is not massively robust. Would need additional code to enforce the number of elements in the vector being reshaped if there is a chance it will not be a multiple of (six in this case)
vec=[0 0 0 3 5 7 2 1 4 0 0 0 4 7 8 5 2 4];
%Remove zeros
vec(vec==0)=[];
index=1;
for iter=1:6:numel(vec)
%Reshape remaining vector into a 3x2 and store
mat(:,:,index)=reshape(vec(iter:iter+5),[],2);
index=index+1;
end
mat(:,:,1)
ans = 3×2
3 2 5 1 7 4
mat(:,:,2)
ans = 3×2
4 5 7 2 8 4

추가 답변 (0개)

카테고리

Help CenterFile Exchange에서 Matrix Indexing에 대해 자세히 알아보기

태그

제품

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by