could anyone help me how to select four maximum values of each row in a matrix size(10,8)
7 ビュー (過去 30 日間)
古いコメントを表示
I am having a matrix of size(10,8) (% 10 rows and 8 columns)
I want to select 4 maximum values from each row by having the result of matrix size(4,8)(%4 rows and 8 columns)
Could anyone please help me on this.
1 件のコメント
採用された回答
KALYAN ACHARJYA
2019 年 5 月 29 日
編集済み: KALYAN ACHARJYA
2019 年 5 月 29 日
You can do it in multiple ways, let’s consider, the mat1 is matrix having size 10x8
sort_mat=sort(mat1);
result=sort_mat(7:end,:);
Another way as per @madhan ravi comment
sort_mat=sort(mat1,'descend');
result=sort_mat(1:4,:)
See example
>> mat1=rand(10,8)
mat1 =
0.2599 0.5499 0.1839 0.3692 0.5752 0.6477 0.7802 0.8176
0.8001 0.1450 0.2400 0.1112 0.0598 0.4509 0.0811 0.7948
0.4314 0.8530 0.4173 0.7803 0.2348 0.5470 0.9294 0.6443
0.9106 0.6221 0.0497 0.3897 0.3532 0.2963 0.7757 0.3786
0.1818 0.3510 0.9027 0.2417 0.8212 0.7447 0.4868 0.8116
0.2638 0.5132 0.9448 0.4039 0.0154 0.1890 0.4359 0.5328
0.1455 0.4018 0.4909 0.0965 0.0430 0.6868 0.4468 0.3507
0.1361 0.0760 0.4893 0.1320 0.1690 0.1835 0.3063 0.9390
0.8693 0.2399 0.3377 0.9421 0.6491 0.3685 0.5085 0.8759
0.5797 0.1233 0.9001 0.9561 0.7317 0.6256 0.5108 0.5502
>> sort_mat=sort(mat1)
sort_mat =
0.1361 0.0760 0.0497 0.0965 0.0154 0.1835 0.0811 0.3507
0.1455 0.1233 0.1839 0.1112 0.0430 0.1890 0.3063 0.3786
0.1818 0.1450 0.2400 0.1320 0.0598 0.2963 0.4359 0.5328
0.2599 0.2399 0.3377 0.2417 0.1690 0.3685 0.4468 0.5502
0.2638 0.3510 0.4173 0.3692 0.2348 0.4509 0.4868 0.6443
0.4314 0.4018 0.4893 0.3897 0.3532 0.5470 0.5085 0.7948
0.5797 0.5132 0.4909 0.4039 0.5752 0.6256 0.5108 0.8116
0.8001 0.5499 0.9001 0.7803 0.6491 0.6477 0.7757 0.8176
0.8693 0.6221 0.9027 0.9421 0.7317 0.6868 0.7802 0.8759
0.9106 0.8530 0.9448 0.9561 0.8212 0.7447 0.9294 0.9390
>> resul1=sort_mat(7:10,:)
resul1 =
0.5797 0.5132 0.4909 0.4039 0.5752 0.6256 0.5108 0.8116
0.8001 0.5499 0.9001 0.7803 0.6491 0.6477 0.7757 0.8176
0.8693 0.6221 0.9027 0.9421 0.7317 0.6868 0.7802 0.8759
0.9106 0.8530 0.9448 0.9561 0.8212 0.7447 0.9294 0.9390
>>
3 件のコメント
参考
カテゴリ
Help Center および File Exchange で Logical 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!