From a matrix how can I randomly select one column combination at a time

2 ビュー (過去 30 日間)
Neetha Francis
Neetha Francis 2021 年 5 月 13 日
コメント済み: Neetha Francis 2021 年 5 月 15 日
Suppose I have
A = [ 1 0 0
0 1 1
1 1 0]
I would like to get any column based on value of a random number, and send to another matrix with the other two columns successively.

回答 (1 件)

Image Analyst
Image Analyst 2021 年 5 月 13 日
編集済み: Image Analyst 2021 年 5 月 13 日
This will do it:
A = [ 1 0 0
0 1 1
1 1 0]
[rows, columns] = size(A)
% Get a random column.
randomColumn = randi(columns)
% Get indexes of the other columns.
otherColumns = setdiff(1:columns, randomColumn)
% Take that random column, and tack on the other columns to the right of it.
outputMatrix = A(:, [randomColumn, otherColumns])
For example:
A =
1 0 0
0 1 1
1 1 0
randomColumn =
2
otherColumns =
1 3
outputRowVector =
0 1 0
1 0 1
1 1 0

カテゴリ

Help Center および File ExchangeCreating and Concatenating 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!

Translated by