Create a vector for each element in another vector to constitute a matrix
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Consider the following vector
v=[1:5]'
I want to create for each element of v another v, such that we have the following matrix
[1 1; 1 2; 1 3; 1 4; 1 5; 2 1; 2 2; ect]
Is there a shortcut or a code trick?
I tried this and it works but I wonder if there is a better way of doing it
v=[1:5]';
v1=repmat(v,length(v),1);
v2=repmat(v',length(v),1);
M=[v1(:) v2(:)];
M is what I want.
3 comentarios
KSSV
el 30 de Jun. de 2020
what is etc?
ABDULAZIZ ALTUN
el 30 de Jun. de 2020
KSSV
el 30 de Jun. de 2020
Thats what you can do...use repmat/ repelem.
Respuestas (1)
madhan ravi
el 30 de Jun. de 2020
Editada: madhan ravi
el 30 de Jun. de 2020
[repelem(v, numel(v)), repmat(v, numel(v), 1)]
%or
[V1, V2] = meshgrid(v,v)
[V1(:), V2(:)]
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