Creating Matrix using two vectors and scalar
2 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Hi guys,
I need your help in solving the following problem: Given a row vector, a column vector and an index create a matrix in the following manner (look at example) without using cell arrays and the implementation should be fast:
Remark: "index" correspond to the row column!
Thanks in advance.
5 Kommentare
Antworten (2)
Andrei Bobrov
am 17 Dez. 2015
function out = fun1(r,c,ii)
out = ones(numel(c),1)*r;
out(:,ii) = c;
end
use
r = [2 7 3 5];
c = [2;7;10];
ii = 2;
out = fun1(r,c,ii);
0 Kommentare
Kirby Fears
am 17 Dez. 2015
jack,
Please read the repmat() documentation to understand its interface and functionality. With repmat, you can stack copies of your row vector into a matrix.
You should be able to determine how many copies of your row vector to stack based on the length() or size() of your column vector.
From there, you just have to insert the column vector into the appropriate column using array indexing .
0 Kommentare
Siehe auch
Kategorien
Mehr zu Matrix Indexing finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!