How can I delete even rows in a matlab Matrix
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Mehdi Jaiem
el 23 de Nov. de 2020
Comentada: Mehdi Jaiem
el 23 de Nov. de 2020
Hello
My Idea consists in deleting every row with an even index (I wanted to test something).
But this code does not seem to work.
I get the error " Matrix index is out of range for deletion. "
Thank you
Y=magic(10)
%T = Y (1:2:end , 1:3:end );
T=Y
[a,b]=size(T);
for i = 1:a
r=rem(i,2);
if (r == 0)
T(i, :)=[];
end
T
end
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Respuesta aceptada
Stephan
el 23 de Nov. de 2020
Editada: Stephan
el 23 de Nov. de 2020
>> A = [1 2 3; 4 5 6; 7 8 9; 0 -1 -2]
A =
1 2 3
4 5 6
7 8 9
0 -1 -2
>> A(2:2:end,:) = []
A =
1 2 3
7 8 9
3 comentarios
Stephan
el 23 de Nov. de 2020
A(:, 1:3:end) = [];
will delete every third column without copying te wanted ones. If you dont want to use this syntax you have to use a loop - but why should you do this?
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