Undefined Function Error for 'title.m' - What's Going On?

[buildingblocs]

I am occasionally coming across this message for a given m-file 'title.m':


Undefined function or method 'title' for input arguments of type 'char'.


Even for very basic scripts this happens. An explanation of what exactly is going on would be much appreciated

 

[jhae2.718]

Can you post the m-file? (You can use

tags.)

 

[buildingblocs]

%Condition blocks example.
reserve = 100; %initial amount in the reservoir
allreserve = []; 
alloutflow = [];
for i = 1:20; %perform the following statements 20 times
    if reserve < 30
        lossrate = 0.3;
    else
        lossrate = 0.2;
    end %if reserve...
    outflow = lossrate * reserve; %calculate the amount of the snow that melts
    reserve = reserve - outflow; % subtract this amount from the reserve
    disp(['after day' num2str(i) ' outflow= ' num2str(outflow)...
        'reserve=' num2str(reserve)]);
    allreserve = [allreserve reserve];
    alloutflow = [alloutflow outflow];
end %for i ...
hold off
plot (allreserve, 'g-')
hold on
plot (alloutflow, 'r-')