Set some values to zero regarding to anothers

Hi, i want to set all values different from wx vector to zero

index=find(labels==0); 
wx=full(T(index,1));% vector containing values to not be setted to zero
elements=full(T(:,1));
indexmr=find(~ismember(elements,wx));% find index of elements in elements not equal to wx
elements(indexmr)=0;% set values to zero

the problem that there exists values that are not setted to zero and does'nt exist in wx

size(wx)
155 1
size(find(elements))
176 1

i have tried also

elements=zeros(size(T(:,1)));
for j=1: size(elements,1)
    for i=1: size(index,1)
        if (index(i)==j)
            elements(j)=T(index(i),1);
        end

      end
  end
  size(find(elements))
115 1

Thnaks in advance

Answer 1

[Image Analyst]

Please give some data with desired output. It's not clear what you want.

For example to "set all values different from wx vector to zero" you could do

% Find indexes where labels is different from wx.
indexesThatDontMatch = labels ~= wx;
% Now set to zero.
labels(indexesThatDontMatch) = 0;

Or maybe it's possible you want the setdiff(): "C = setdiff(A,B) returns the data in A that is not in B." I'm not sure until you clarify some more by showing input and output data.