How to divide vector to matrix(same row and column)

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Kong
Kong am 27 Mär. 2020
Bearbeitet: KSSV am 27 Mär. 2020
Hello.
I got some vector like (82580526 X 1)
I want to divide this vector to matrix. The matrix have same row and column. (N x N)
If it can't be divide equally, some row or column of the matrix can be splited.
Could you explain how to have same row and column?

Akzeptierte Antwort

KSSV
KSSV am 27 Mär. 2020
Bearbeitet: KSSV am 27 Mär. 2020
To remove extra elements and convert to square matrix
A = rand(82580526,1) ;
l = length(A) ;
% GEt the nearest perfect square
N = floor(sqrt(l)) ;
% Reshape into required matrix
iwant = reshape(A(1:N*N),N,N) ;
To append zeros and convert to square matrix
A = rand(82580526,1) ;
l = length(A) ;
% GEt the next perfect square
N = ceil(sqrt(l)) ;
% Append zeros
A = [A ; zeros(N^2-l,1)] ;
% Reshape into required matrix
iwant = reshape(A,N,N) ;

Weitere Antworten (1)

Walter Roberson
Walter Roberson am 27 Mär. 2020
If you have the Communications Systems Toolbox, then
buffer(TheVector, ceil(sqrt(numel(TheVector))))

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