delete rows in a table

231 views (last 30 days)
Jessica Blasco
Jessica Blasco on 24 May 2018
Commented: Jessica Blasco on 24 May 2018
Hi, I need help to delete several rows of a table whose column has a zeros for example
column 1 column2
1 2
3 2
4 0
5 6
1 0
9 0
I need delete the rows number 3,5 and 6

Accepted Answer

Guillaume
Guillaume on 24 May 2018
Assuming you indeed have a matlab table:
yourtable(yourtable.column2 == 0, :) = [];
will delete all rows whose column2 is 0.
If your table is actually a matrix:
yourmatrix(yourmatrix(:, 2) == 0, :) = [];
will do the same.
  1 Comment
Jessica Blasco
Jessica Blasco on 24 May 2018
thankssss!!!! it worksss!!! is what I wanted to do it!!

Sign in to comment.

More Answers (1)

Alfonso
Alfonso on 24 May 2018
Edited: Alfonso on 24 May 2018
Try this
% define your table
table_array = [1 2; 3 2; 4 0; 5 6; 1 0; 9 0];
% search index rows
[index_row index_col] = find(table_array==0);
% delete
table_array( index_row, : ) = [];
  2 Comments
Guillaume
Guillaume on 24 May 2018
Edited: Guillaume on 24 May 2018
Since you never use index_col, you can write:
[index_row, ~] = find(table_array == 0); %force the two output version of find.
A simpler version of the whole lot:
table_array(any(table_array == 0, 2), :) = [];
My understanding however is that the 0s are only in column 2
Jessica Blasco
Jessica Blasco on 24 May 2018
thank you very much, it works to matrix very well, buy I have a table. First of all , I had table2array, but later, other partner said me the solution by tables!
even so, thanks! good job!

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!