how do I delete values from a matrix when my loop condition is false?

I encountered a problem - my intention was to delete values in the matrix in certain conditions - the problem is that when I define my loop to delete item from my matrix in certain conditions when the loop keep going I get this message: >> Index of element to remove exceeds matrix dimensions. does someone has an idea to resolve my problem?

this is the important part of my code:

    %
unitVec = round(0+(5).*rand(1,50));
bagUpVec = bagVec;
for jj = 1:size(bagVec,2);
    if unitVec(jj)== 5;
        bagUpVec(jj) == bagVec(jj)+10;
    end
end
%
psychPass = zeros(1,50);
unitPass = zeros(1,50);
unitWait = zeros(1,50);
numReject = 0;
numPass = 0;
for jj = 1:size(bagUpVec,2);
    if (bagUpVec(jj) >= 90) && (psychVec(jj)>= 700)
        psychPass(jj) = psychVec(jj);
        unitPass(jj) = unitVec(jj);
        numPass = numPass + 1;
        unitWait(jj)=[];
    elseif (bagUpVec(jj) < 85) ...
            && (psychVec(jj)< 600)
        numReject = numReject + 1;
        unitWait(jj) = [];
    else
        psychPass(jj) = [];
        unitPass(jj) = [];
        unitWait (jj) = unitVec(jj);

    end

end

Answer 1

[Jan]

Some hints:

unitVec  = round(5 .* rand(1, 50));
bagUpVec = bagVec;      % ??? What is "bagVec"?
index    = (unitVec == 5);
bagUpVec(index) = bagUpVec(index) + 10;

Ich you delete unitWait(k), the higher elements are moved to the front, such that the former last element moves one index to the front:

a = [1,2,3]
a(1) = []    % a = [2, 3] !!
a(3) = []    % error !

A better method:

index = [1,3];
a(index) = [];