How can I identify the indices of rows containing all NaNs from matrix?
15 ビュー (過去 30 日間)
古いコメントを表示
I have very large matrices, in which some rows contain all NaN. I don't want to remove these rows. But I wish to identify which index contains all NaN. I have seen code for removing such rows, but how can I extract the index value?
I am not very familiar with MATLAB. Thanks in advance.
0 件のコメント
採用された回答
Star Strider
2017 年 5 月 31 日
Try this:
M = [rand(3,5); NaN(1,5); rand(4,5); NaN(1,5); rand(2,5)]; % Create Data
NaN_rows = find(all(isnan(M),2)); % Identify ‘NaN’ Rows By Index
その他の回答 (1 件)
Chandrasekhar
2017 年 5 月 31 日
% idenfity NaN's in the matrix
k = isnan(a);
% find the indices of NaN's
find(k==1);
参考
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!