MATLAB: How to calculate the difference between the elements of two vectors given a condition

condition

Please, how do I implement this on MATLAB? I would like to find the difference between the value of let say x3 minus the maximum value of y that fulfils the condition x3>= y(–)? For example, if x= [106, 306, 407, 607, …] and y = [101, 201, 301, 401, 501,…], at x(3), this difference will be 407 – 401 (401 is the max value less than x(3)).
for i= 1: 100
x = [x1,x2,x3,...]
y= [y1,y2,y3,...]
Time = %the difference between the value of let say x3 minus the maximum value of y that fulfils the condition x3>= y(--)?
end

Best Answer

for given vector x and y;
x= [106, 306, 407, 607] % given x vector
 y = [101, 201, 301, 401, 501]  %givrn y vector
d=[];
for ii=1:length(x)
   for jj=1:length(y)
       if x(ii)>=y(jj)
           d=[d,y(jj)];  %vector of all elements which is less than x say X(3)
       end
    end
   diff=x(ii)-max(d);   %differnece
   d=[];
end
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