Azzera filtri
Azzera filtri

Extracting the data

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Sravantej
Sravantej il 29 Feb 2012
hi,i have a vector consisting of a very few non zero values and remaining all zeros, i need to extract only the non zero values but not zeros. I write a code like x=[0 0 0 0 0 1 0 5 0 9 6 0 0 0 0] n=length(x); for i=1:n if(x(i)~=0) y(i)=x(i); end end But it'll result something like y=[0 0 0 0 0 1 0 5 0 9 6 0 0 0 0] But, i need only non zero values. Can anyone tell me how to get only the non zero values from the vector.
thanks & regards, sravan

Risposta accettata

Andrei Bobrov
Andrei Bobrov il 29 Feb 2012
y = x(x~=0)
or
y = nonzeros(x)
way bad with loop
out = [];
for j1 = 1:numel(x)
if x(j1) ~= 0
out = [out;x(j1)];
end
end

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