extract data from each row in a matrix if all columns in that row above a threshold

I have a matrix of 10 rows & 5 columns I need to compare the data in each row to a threshold so for a specific row if all the columns values are above a threshold then I need to extract that row into another matrix. Can anyone help me to do this please

Many Thanks in advance

Answer 1

[Cedric]

Here is an example:

 >> A = randi( 20, 10, 5 )   % Dummy example.
 A =
    17     4    14    15     9
    19    20     1     1     8
     3    20    17     6    16
    19    10    19     1    16
    13    17    14     2     4
     2     3    16    17    10
     6     9    15    14     9
    11    19     8     7    13
    20    16    14    20    15
    20    20     4     1    16

 >> threshold = 4 ;
 >> B = A(all( A > threshold, 2 ),:)
 B =
     6     9    15    14     9
    11    19     8     7    13
    20    16    14    20    15

PS: if you need to remove these rows, you can do it as follows:

 >> isAllAbove = all( A > threshold, 2 ) ;

 >> B = A(isAllAbove,:)
 B =
     6     9    15    14     9
    11    19     8     7    13
    20    16    14    20    15

 >> A(isAllAbove,:) = []     % or  A = A(~isAllAbove,:)
 A =
    17     4    14    15     9
    19    20     1     1     8
     3    20    17     6    16
    19    10    19     1    16
    13    17    14     2     4
     2     3    16    17    10
    20    20     4     1    16

[sherien al-azerji]

Many Thanks, it weork well