How can I select items in a double list?

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Jonathan Bijman
Jonathan Bijman el 14 de Jun. de 2019
Comentada: Jonathan Bijman el 14 de Jun. de 2019
Hi everyone!
I have a variable which is (105 x 1 double) and I need to select from the first item to 3rd, from 4th item to 6th and from 7th item to 9th.
When, for instance, I apply:
TA8=T_C((1:3):1)
Only appears the first element and not the 2nd and 3rd ones.
How can I show the three elements?
Thank U

Respuesta aceptada

Walter Roberson
Walter Roberson el 14 de Jun. de 2019
reshape(T_C,3,[])
Now the groups of 3 appear as columns.
  7 comentarios
Walter Roberson
Walter Roberson el 14 de Jun. de 2019
Editada: Walter Roberson el 14 de Jun. de 2019
You need one output for each column.
Though I thought you were giving examples and wanted to continue for all of the groups. If you just want those specific parts then just do three assignments,
T_A8 = T_C(1:3);
T_C5 = T_C(4:6);
T_E1 = T_C(7:9);
Though seeing your response to someone else, it looks like what you want is
T_A8 = T_C(1:3:end);
T_C5 = T_C(2:3:end);
T_E1 = T_C(3:3:end);
Jonathan Bijman
Jonathan Bijman el 14 de Jun. de 2019
Thank U again @Walter Roberson for your wisdom and help.
Very thankful =)

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Más respuestas (1)

Image Analyst
Image Analyst el 14 de Jun. de 2019
Try
TA8 = T_C(1:3);
etc. Or for all of them in turn:
for k = 1 : 3 : length(T_C) % Starting at 1, 4, 7, etc....
TA8 = T_C(k:k+2); % Get this group of 3 elements.
% Now do something with TA8
end
  6 comentarios
Image Analyst
Image Analyst el 14 de Jun. de 2019
Sounds like, from your comment to Walter, that you've got it all solved now, so there is no need for me to answer anymore.
Jonathan Bijman
Jonathan Bijman el 14 de Jun. de 2019
Yes, but I appreciate your help @Image Analyst anyway.
Thank U =)

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