Eliminate values from a column vector if two conditions are true

Hi. I need to eliminate zero values from column vectors S1 and F1, just when I have the zero in both cases. I tried these two codes but both give different errors. How should I do it??

J1 is the number of observations that I have.

 for k=1:1:J1 
    if (S1vero(k,1) == 0 && F1vero(k,1) == 0);
            S1vero (k,1) = []
            F1vero (k,1)= []
    end
  end
  
  for k=1:1:J1 
    if (S1garbled(k,1) == 0 && F1garbled(k,1) == 0);
            S1garbled (k,1) = []
            F1garbled (k,1) = []
    end
  end
  

for k=1:1:J1 
    if (S1vero(k,1) == 0 && F1vero(k,1) == 0);
            S1vero (k,1) = nonzeros(S1vero(k,1)');
            F1vero (k,1)= nonzeros(F1vero(k,1)');
    end
end

Answer 1

[Image Analyst]

Try this:

elementsToDelete = F1 == 0 & S1 == 0;
F1(elementsToDelete) = [];
S1(elementsToDelete) = [];

[MARIA SOFIA AMALFITANO]

I'll try thanks