Optimizing or Simplifying code

Hi

I have the following code:

for count = 1:1:size(PointLoads,1);
  if Positions > PointLoads(count,2)                                 % Checks if the location of PointLoad falls within posiyions
  ShearForce = 0;
  else
  Z = (Positions<=PointLoads(count,2));                          %If condition is false then Positions are multiplied by the corresponding forces
  ShearForce = ShearForce + PointLoads(count,1).*Z;
  end
end
%ShearForce for DistributedLoadsLoads
for count = 1:1:size(DistributedLoads,1)
  if Positions > max(DistributedLoads(count,2:3))
    ShearForce = ShearForce;
  else
     DistributedLoads1 = DistributedLoads(count,1);
     A = (max(DistributedLoads(count,2:3)) - min(DistributedLoads(count,2:3)));
     B = (Positions<min(DistributedLoads(count,2:3)));
     C = (max(DistributedLoads(count,2:3)) - Positions);
     D = (and(Positions>=min(DistributedLoads(count,2:3)),Positions<=max(DistributedLoads(count,2:3))));
    ShearForce = ShearForce + DistributedLoads1.*A.*B;
    ShearForce = ShearForce + DistributedLoads1.*C.*D;
  end
end

I was wondering if anyone would be able to assist me in optimizing the code and perhaps making it less complicated.

Thanks

Answer 1

[Jan]

index      = (Positions <= PointLoads(k, 2));
ShearForce = sum(PointLoads(index, 1));

%ShearForce for DistributedLoadsLoads
D    = DistributedLoads;  % Nicer name
maxD = max(D(:, 2:3), [], 1);
minD = min(D(:, 2:3), [], 1);
for k = 1:size(D,1)
   if Positions >= maxD(k)
      A = maxD(k) - minD(k);
      B = (Positions < minD(k));
      C = maxD(k) - Positions;
      D = (and(~B, Positions <= maxD(k)));
      ShearForce = ShearForce + D(k,1) .* (A .* B + C .* D);
   end
end

Is "Positions" a vector? If so, are you sure that "if Positions >= maxD(k)" does, what you want?