Find zeros in a part of a matrix
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
Konstantinos Tsitsilonis
am 28 Nov. 2017
Kommentiert: Konstantinos Tsitsilonis
am 28 Nov. 2017
Hi all,
I have a matrix such that:
Tarr =
1.0e+05 *
0.0006 0.0000 0.0000 0.0000 0
0.0002 0 0 0 0
0.0001 0 0 0 0.0001
0.0004 0 0 0 0
0 1.3018 1.4506 0.2323 0.0540
0.0005 0.0000 0.0000 0 0
0.0002 0 0 0 0
0.0000 0 0 0 0
0.0004 0 0 0 0
0 -2.9018 -3.0506 0.2323 0.0540
0.0005 0 0 0 0
0.0002 0 0 0 0
0.0000 0 0 0 0
0.0004 0 0 0 0
0 0 0 0.2323 0.0540
I would like to find the indices of the zero elements in the following subsection of the matrix
Tarr(5:5:end,2:end)
An then replace those with some numbers I desire. I know this must be fairly easy, however I cant seem to be able to find a straightforward way.
KR,
KMT.
0 Kommentare
Akzeptierte Antwort
Jos (10584)
am 28 Nov. 2017
temp = Tarr(5:5:end,2:end) ; % get the relevant portion
temp(temp==0) == 12345 ; % your value
Tarr(5:5:end,2:end) = temp ; % put the edited portion back in
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Logical 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!