MATLAB: Index in position 1 exceeds array bounds (must not exceed 25). Please help!!

code debuggingMATLAB

function [Slotplayers,RoulettePlayers,HouseEarning]= hw5_func(SlotRounds,RouletteRounds)
Slotplayers=zeros(SlotRounds+1,10);
SlotPlayers(1, :)=round(5000+(25000-5000).*rand(1,10));
HouseEarning = 0;
for i=1:SlotRounds
    Spin=rand(i,10);
    for k=1:10
        if  SlotPlayers(i,k)>=100
            if Spin(i,k)<= 0.00001
                SlotPlayers(i+1,k) = SlotPlayers(i,k) + 250000;
                
            elseif Spin(i,k)>0.00001 && Spin(i,k)<=0.00015
                SlotPlayers(i+1,k)= SlotPlayers(i,k)+ 100000;
                
            elseif Spin(i,k)>0.00015 && Spin(i,k)<=0.0005
                SlotPlayers(i+1,k)= SlotPlayers(i,k) + 40000;
                
            elseif Spin(i,k)>0.0005 && Spin(i,k)<=.005
                SlotPlayers(i+1,k)= SlotPlayers(i,k) + 5000;
                
            elseif Spin(i,k)>0.005 && Spin(i,k)<=0.07
                SlotPlayers(i+1,k)= SlotPlayers(i,k) + 500;
                
            elseif Spin(i,k)>0.07 && Spin(i,k)<=0.92434
                SlotPlayers(i+1,k)= SlotPlayers(i,k) + 0;
                
            end
        end
    end
    HouseEarning(i+1)= HouseEarning(i)+(sum(SlotPlayers(i,:))-sum(SlotPlayers(i+1,:)));
end
This is the error I am getting:
Index in position 1 exceeds array bounds (must not exceed 67).
Error in hw5_func (line 35)
   HouseEarning(i+1)= HouseEarning(i)+(sum(SlotPlayers(i,:))-sum(SlotPlayers(i+1,:)));
Thanks!

Best Answer

You initialize SlotPlayers with SlotRounds rows. When i becomes SlotRounds then you try to access SlotPlayers(i+1,:) which would be SlotPlayers(SlotRounds+1,:) which potentially does not exist because it was only initialized to SlotRounds.
In particular it will not be assigned to if SlotPlayers(SlotRounds,:) are all < 100.
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