MATLAB: Code will not plot graph when I try to change the payload vector increment.

duplicate postplot

My code is supposed to display a plot of the Range vs Payload of an aircraft, however, when I try and change the increment of my payload vector from 100, the plot comes up blank. It will not even include my title or axes labels. Let me know what I need to fix to allow me to change my increment and still have the plot display. It shows there is a potential error with the length of the payload and the range vectors when it gets to the point of plotting if I change the incerment. 
% PAYLOAD CALULATIONS
TotalPassengerWeight = Passengers * PassengerWeight;
TotalLuggageWeight = Luggage * LuggageWeight;
MaxPayload = TotalPassengerWeight + TotalLuggageWeight;
Payload = [0:100:MaxPayload];
% FUEL CALCULATIONS
i = 1;
while Payload <= MaxPayload & i <= length(MaxPayload)
	Fuel(i) = MaxTakeOff - EmptyWeight - Payload(i) - TotalCrewWeight; %kg
	i = i + 1;
end
TakeOffFuel = .995 .* Fuel;
ClimbFuel = .980 .* Fuel;
DescentFuel = .990 .* Fuel;
LoiterFuel = .987 .* Fuel;
LandFuel = .992 .* Fuel;
TakeOffFuelUsed = Fuel - TakeOffFuel;
ClimbFuelUsed = Fuel - ClimbFuel;
DescentFuelUsed = Fuel - DescentFuel;
LoiterFuelUsed = Fuel - LoiterFuel;
LandFuelUsed = Fuel - LandFuel;
FuelUsed = TakeOffFuelUsed + ClimbFuelUsed + DescentFuelUsed + LoiterFuelUsed + LandFuelUsed;
% WEIGHT CALCULATIONS
InitialWeight = MaxTakeOff;
FinalWeight = MaxTakeOff - (Fuel - FuelUsed);
% RANGE CALCULATION
Range = (PropellerEfficiency / Ct) * (LtoD) * log(InitialWeight ./ FinalWeight); %m
% PLOT.
figure(1)
hold on
plot(Payload,Range,"r-");
title("Range(m) vs Payload(kg) of a Propeller Aircraft");
xlabel("Payload(m)");
ylabel("Range(m)");
grid on
hold off

Best Answer

You're not using the correction I gave you in your other post:
https://www.mathworks.com/matlabcentral/answers/668103-index-exceeds-the-number-of-array-elements-error#answer_559568
while (i <= length(Payload)) && (Payload(i) <= MaxPayload)
Why not?
Plus, realize that Fuel is a vector so all the other things will also vectors.
If you need more help, give us the missing code to assign the variables that are needed to run your program.
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