How to merge matrix in a loop?
4 ビュー (過去 30 日間)
古いコメントを表示
Suppose I have four matrix
A,B,C and D. These all are (mx3) matrix where m is some number.
and I have to define a number as an user input which is N.
Now I want a merge matrix such that,
for N = 1
New_matrix = [A]
for N = 2
New_matrix = [A
B
C]
for N = 3
New_matrix = [A
B
C
D
A]
for N = 4
New_matrix = [A
B
C
D
A
B
C]
and so on......
0 件のコメント
採用された回答
David Hill
2022 年 10 月 28 日
A=randi(10,4,3)
B=randi(10,5,3)
C=randi(10,6,3)
D=randi(10,7,3)
N=2;
newMatrix=generateMatrix(A,B,C,D,N)
function newMatrix=generateMatrix(A,B,C,D,N)
n=2*N-1;
s=[size(A,1),size(B,1),size(C,1),size(D,1)];
newMatrix=repmat([A;B;C;D],ceil(n/4),1);
S=sum(s*floor(n/4))+sum(s(1:mod(n,4)));
newMatrix=newMatrix(1:S,:);
end
その他の回答 (1 件)
KALYAN ACHARJYA
2022 年 10 月 28 日
編集済み: KALYAN ACHARJYA
2022 年 10 月 28 日
% Just example
A=rand(4,3);
B=rand(4,3);
C=rand(4,3);
D=rand(4,3);
data_mat={A,B,C,D}; % Created to handle data easily
N=4 ; % Example or length of data_mat
data=cell(1,N); %Memory Pre-allocation
for i=1:N
data{i}=horzcat(data_mat{1:i});
end
data
You may look for cellfun also, please do the modification as per requirements.
2 件のコメント
KALYAN ACHARJYA
2022 年 10 月 28 日
To store matrix or any other data type, cell array is much easier way to handle it.
Hope it helps!
参考
カテゴリ
Help Center および File Exchange で Resizing and Reshaping Matrices についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!