How to return value to zero before index of specific element in matrix?

2 visualizzazioni (ultimi 30 giorni)
Hi all!
I have a matrix (m*n), in each row i have a specific element that i want all element before it to be set to zero.
I extracted the index of specific element in column vector "V" . all i need now is to return values before this index "0".
thanks

Risposta accettata

Matt J
Matt J il 12 Set 2022
Modificato: Matt J il 12 Set 2022
m=4;n=8;
Matrix=rand(m,n),
Matrix = 4×8
0.1866 0.9389 0.4492 0.7203 0.0563 0.4231 0.2116 0.7976 0.8085 0.5572 0.6158 0.9831 0.7248 0.2271 0.2121 0.2003 0.1690 0.7889 0.3033 0.0181 0.7499 0.4327 0.9734 0.0099 0.5639 0.1376 0.0910 0.0868 0.3564 0.9456 0.1187 0.6761
V=[3;7;2;5];
Matrix=Matrix.*((1:n)>=V),
Matrix = 4×8
0 0 0.4492 0.7203 0.0563 0.4231 0.2116 0.7976 0 0 0 0 0 0 0.2121 0.2003 0 0.7889 0.3033 0.0181 0.7499 0.4327 0.9734 0.0099 0 0 0 0 0.3564 0.9456 0.1187 0.6761

Più risposte (0)

Community Treasure Hunt

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

Start Hunting!

Translated by