Azzera filtri
Azzera filtri

Identifying sequences of two or more and maintaining vector shape

2 visualizzazioni (ultimi 30 giorni)
I'm pretty new to Matlab and know what I want to do, just not how to code it. I have a vector in which I want to remove nonzero values which are not in a sequence of two or more i.e.
0 112 58 0 0 0 0 114 0 24 0 0
and turn the 114 and 24 values to 0, but keep any value sequences of two or more.
I've switched to logicals to keep things simple and managed to find out how many times there are these sequences:
ML4= find(diff([-1 ML3 -1]) ~= 0);
runlength = diff(ML4) ;
runlength1 = runlength(1+(ML3(1)==0):2:end);
numberBursts=sum(runlength1>1);
but not a way to keep the original vector shape Any help much appreciated.

Risposta accettata

Andrei Bobrov
Andrei Bobrov il 6 Dic 2013
Modificato: Andrei Bobrov il 6 Dic 2013
x = [0 112 58 0 0 0 0 114 0 24 0 0];
x(strfind([0,x(:)' ~= 0, 0],[0 1 0])) = 0;

Più risposte (1)

Jos (10584)
Jos (10584) il 6 Dic 2013
x = [0 112 58 0 0 0 0 114 0 24 0 0]
xx = [false x~=0 false]
ix = 2:numel(x)+1
tf = ~xx(ix-1) & xx(ix) & ~xx(ix+1)
y = x
y(tf) = 0

Categorie

Scopri di più su MATLAB in Help Center e File Exchange

Community Treasure Hunt

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

Start Hunting!

Translated by