seleting some part of matrix

1 Ansicht (letzte 30 Tage)
Andrea
Andrea am 30 Mai 2012
Q = randi(456,10,15);
row=[1 2 5 4 3 6];
column=[5 7 3 4 8 14];
p = Q(row,column);
P = zeros(size(Q));
P(1:numel(row),1:numel(column)) = p;
The problem is:
I need matrix p to have Q(row(1),column(1)), Q(row(1),column(1)), Q(row(2),column(2)), Q(row(3),column(3)), Q(row(4),column(4)), Q(row(5),column(5)), and Q(row(6),column(6)). But what (p = Q(row,column);) give me is a 6*6 matrix in this way Q(row(1),column(1)), Q(row(1),column(2)), Q(row(1),column(3)), Q(row(1),column(4)), and..... How can solve this problem?
  1 Kommentar
Andrei Bobrov
Andrei Bobrov am 31 Mai 2012
double
http://www.mathworks.com/matlabcentral/answers/39877-put-smaller-matrix-in-bigger-matrix

Melden Sie sich an, um zu kommentieren.

Antworten (1)

Walter Roberson
Walter Roberson am 31 Mai 2012
Q( subs2ind(size(P), row, column) )

Kategorien

Mehr zu Operators and Elementary Operations finden Sie in Help Center und File Exchange

Produkte

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by