Error taking inverse of a matrix
조회 수: 3 (최근 30일)
이전 댓글 표시
Hi,
I am receiving the error, "Subscript indices must either be real positive integers or logicals", when I attempt to take the inverse of a matrix. Can somebody please help me? Here is my code:
C = xlsread('OP_data.xlsx'); D = C;
y = log(C(:,3));
D(any(C==0,2),:)=[]; y(any(C==0,2),:)=[];
X = [ones(size(D,1),1),log(D(:,5)),log(D(:,6))];
Beta = inv(X'*X)*(X'*y);
Any help would be greatly appreciated!
댓글 수: 1
Roger Stafford
2015년 3월 20일
Somewhere in your system there may be a variable with the name 'inv', which causes matlab to misinterpret your line "Beta = inv(X'*X)*(X'*y);". Try doing a
whos
to see if 'inv' shows up.
답변 (0개)
참고 항목
카테고리
Help Center 및 File Exchange에서 Matrix Indexing에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!