How can I separate the elements of a vector ?
4 ビュー (過去 30 日間)
古いコメントを表示
Hello,
I have a row vector i of size say 1x300 and that its indices can be any number of the range [1 5] in a descending order. For example:
i = [5 3 3 3 3 3 3 2 2 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 0 0 0 0 0]
As you can notice number 4 is not always in i. And I'm trying to separate the similar numbers into 4 groups in this example.
for jj = max(i):-1:0
t = i==jj;
idx = find(t~=0);
.
.
.
end
In this particular example, jj should take only values 5,3,2,1,0. But it is not since the step is -1. And the resulting idx is empty.
When i is like the following, my code works fine.
i = [6 6 5 4 4 4 3 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 0 0 0 0 0]
I would appreciate your help.
0 件のコメント
採用された回答
Stephen23
2022 年 5 月 27 日
for jj = i(diff(i)~=0)
or
for jj = unique(i,'stable')
10 件のコメント
Stephen23
2022 年 5 月 27 日
"do you know by any chance why when jj reaches 0, i get updated and the for loop starts all over again"
I don't see that (nor do I see your code):
i = [6,6,5,4,4,4,3,3,3,2,2,2,2,2,2,2,2,2,2,1,1,1,1,1,0,0,0,0,0,-1,-1,-1];
for jj = unique(i(i>=0),'stable')
display(jj)
end
その他の回答 (1 件)
Walter Roberson
2022 年 5 月 27 日
File Exchange, run length encoding. If I recall correctly, contribution is from Jan.
参考
カテゴリ
Help Center および File Exchange で Loops and Conditional Statements 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!