How can I add a column vector to every column within a cell array?
显示 更早的评论
Ok, so I now have a cell array with 1000 m*n matrices which I have fiddled with earlier.
What I now need to do is to each column within each of those m*n matrices, add a column vector 'A'
So, my m*n matrices look like:
1 2 3, 4 5 6, 7 8 9,
my column vector is
1, 2, 1,
so i want my output to be
2 3 4, 6 7 8, 8 9 10,
Again, please keep this nice and simple for me :)
采纳的回答
T = {magic(3); ones(3); zeros(3)}; % Initial cell array.
A = [1 2 3]; % The vector to add.
Tnew = cellfun(@(x) bsxfun(@plus,x,A'),T,'Un',0 ); % or 'T ='
Now compare:
T{1},Tnew{1}
BSXFUN is a great function to get to know if you are going to be spending time with MATLAB. And since you are working with cell arrays, you should learn CELLFUN too. It is like a FOR loop in one line!
3 个评论
John
2012-8-16
Azzi Abdelmalek
2012-8-16
he asked to make it simple, i don't think you do
vinjamoori vikas
2020-12-17
Sir, I have total six matrices each with the size 4x4. I want to add all the combinations of the columns.
That means each column of one matrix with each other column of other matrices. I should get total of 4^6 summed vectors. Please suggest me something.
更多回答（1 个）
Azzi Abdelmalek
2012-8-16
编辑：Azzi Abdelmalek
2012-8-16
A=[1 2 3; 4 5 6; 7 8 9]
b=[1; 2; 1];
[n,m]=size(A);A=A+repmat(b',1,m)
%now for all your 1000 matrix, if they are in a cell array M
for k=1:1000
A=M{k}
% add a previous code
b=[1; 2; 1];
[n,m]=size(A);A=A+repmat(b',1,m)
end
2 个评论
Azzi Abdelmalek
2012-8-16
编辑：Azzi Abdelmalek
2012-8-16
it's ok, maby you are missing a vector a. can you post error message? or part of your cell array and your vector.
another thing; when you tape T{1} what did you get?
类别
在 帮助中心 和 File Exchange 中查找有关 Creating and Concatenating Matrices 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
Translated by 
