Deleting complete row having negative integer at any position

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GEOINFORMATICS
GEOINFORMATICS 2013 年 10 月 3 日
コメント済み: Sean de Wolski 2013 年 10 月 14 日
Hi,,, i have a matrix of 596684*4 . at the 4th col of matrix, sometime there appears a -ive number like -2445445, and i want to remove the whole row which contains this number. can anyone help me. Thanks

回答 (1 件)

Nishitha Ayyalapu
Nishitha Ayyalapu 2013 年 10 月 14 日
Here is an example code that would help:
A = [22 33 43 55;
11 22 -33 44;
55 22 33 -44;
99 88 77 66];
[row_neg col_neg] = find(A<0);
A(row_neg,:) = [];
This should manipulate A to
A =
22 33 43 55
99 88 77 66
  1 件のコメント
Sean de Wolski
Sean de Wolski 2013 年 10 月 14 日
編集済み: Sean de Wolski 2013 年 10 月 14 日
No reason for find here, logical indexing will work just fine:
A(any(A<0,2),:) = [];

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