Matrix combining with array in a specific manner
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Hello MATLABERS,
how do i combine a array of integers with a Matrix of Integers. ex: Matrix A = [1 2 3 4 5 6 7 8 9 10] is combined with a matrix B = [2 5 7;1 2 9 ;4 5 6] in such a way that the resultant matrix C results should be as follows: so if a sequence has a one in it, it is stored right under one==>
[1 2 3 4 5 6 7 8 9 10;0 2 0 0 5 0 7 0 0 0;1 2 0 0 0 0 0 0 9 ;0 0 0 4 5 6 0 0 0]
1 2 3 4 5 6 7 8 9 10
0 2 0 0 5 0 7 0 0 0
1 2 0 0 0 0 0 0 9 0
0 0 0 4 5 6 0 0 0
P.s if ur interested in only a scalar combined with a matrix a quick solution was posted by Wayne King http://www.mathworks.com/matlabcentral/answers/40436-matrix-filling
0 Kommentare
Akzeptierte Antwort
Andrei Bobrov
am 7 Jun. 2012
i1 = arrayfun(@(ii)ismember(A,B(ii,:)),(1:size(B,1)),'un',0);
out = ones(size(B,1),1)*A.*cat(1,i1{:});
or
out = bsxfun(@times,cat(1,i1{:}),A)
2 Kommentare
Andrei Bobrov
am 7 Jun. 2012
Choose other directory for the 'Result.xls' (non 'C:\Program Files\MATLAB\R2012a\bin\')
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Standard File Formats 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!