create a matrix with numbers from vector
1 回表示 (過去 30 日間)
古いコメントを表示
i have a vector as
v = [ 1 1 1 2 2 2 3 3 4]
i wanted to create a new matrix as
M = [
1 1 1 0 0 0 0 0 0;
0 0 0 1 1 1 0 0 0;
0 0 0 0 0 0 1 1 0;
0 0 0 0 0 0 0 0 1];
how to do it?
0 件のコメント
採用された回答
madhan ravi
2019 年 2 月 13 日
v = [1 1 1 2 2 2 3 3 4];
u=unique(v);
R=arrayfun(@(x)v==u(x),1:numel(u),'un',0);
M=+vertcat(R{:})
Gives:
M =
1 1 1 0 0 0 0 0 0
0 0 0 1 1 1 0 0 0
0 0 0 0 0 0 1 1 0
0 0 0 0 0 0 0 0 1
0 件のコメント
その他の回答 (2 件)
参考
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!