How to turn an 1x1x3 array to a 1x3 vector?

조회 수: 65 (최근 30일)
Z Yerby
Z Yerby 2019년 6월 21일
댓글: Z Yerby 2019년 6월 24일
Various manipulations I perform in my script create a 1x1x3 array which I then need to produce a dot product with a 1x3 vector. That's not playing together so I need to turn my 1x1x3 array into a 1x3 vector. I figure I can use vector=[array(1,1,1), array(1,1,2), array(1,1,3) ]; but I don't like how that looks and figure I could cut a line out if there was a function call that does the same thing. I assume there is one because this seems like something an existing function call would do but I cannot find it. Is there something I could use instead of vector=[array(1,1,1), array(1,1,2), array(1,1,3) ];?

채택된 답변

madhan ravi
madhan ravi 2019년 6월 21일
편집: madhan ravi 2019년 6월 21일
reshape(array,1,[]) % or squeeze() transposed
  댓글 수: 1
Z Yerby
Z Yerby 2019년 6월 24일
I ended up using squeeze and it worked for my purposes well. Thanks.

댓글을 달려면 로그인하십시오.

추가 답변 (1개)

Bruce Elliott
Bruce Elliott 2019년 6월 21일
Yes, there is an existing function to do that: permute().
Here's the help text:
% permute Permute array dimensions.
% B = permute(A,ORDER) rearranges the dimensions of A so that they are in
% the order specified by the vector ORDER. The resulting array has the
% same values as A but the order of the subscripts needed to access any
% particular element is rearranged as specified by ORDER. For an N-D
% array A, numel(ORDER)>=ndims(A). All the elements of ORDER must be
% unique.
%
% permute and IPERMUTE are a generalization of transpose (.')
% for N-D arrays.
%
% Example:
% a = rand(1,2,3,4);
% size(permute(a,[3 2 1 4])) % now it's 3-by-2-by-1-by-4.
%
% See also ipermute, circshift, size.

카테고리

Help CenterFile Exchange에서 Logical에 대해 자세히 알아보기

태그

Community Treasure Hunt

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

Start Hunting!

Translated by