Plotting issues with labeling axis and giving titles

I have commented out the titles and labels as the program runs fine without them but when i uncomment them it still graphs but gives and Index exceds array bounds and dosnt label or title the graph. pls help

R_A1 = -2250; 
R_P1 = 3750; 

% Plot for shear force

x_beam = 0:.1:5; %length of beam

syms x
y = piecewise(x<2, R_A1, 2<=x<5, R_A1 + R_P1, x ==5,0)
subplot(3,2,1)
% title('Shear Force Diagram')
% xlabel('distance along beam (m)')
% ylabel('Shear Force (N)')
fplot(y)
xlim([0 5])
ylim([-2500 2500])

[Adam Danz]

No error when I run it. However, you must move the calls to title(), xlabel(), and ylabel() to after fplot() --or-- include the handle to the subplot axes as the first input to fplot().

Please provide the full copy-pasted error message.

[Austin Duncan]

this is the response even after the code is moved until after fplot()

Index exceeds array bounds.

Error in Diving_Board_MD (line 33)

title('Shear Force Diagram')

Answer 1

[Walter Roberson]

You accidentally created a variable named title which is interfering with calling the function named title

Answer 2

[Adam Danz]

My hunch is that 'title' is a variable in your data and no longer represents matlab's builtin function of the same name.

This reproduces your error:

title = 123456; 
title('Shear Force Diagram')

% result:
error: Index exceeds array bounds.

To confirm this,

which title

If title is a variable you'll see: title is a variable.

If title is matlab's function you'll see something like:

C:\Program Files\MATLAB\R2019a\toolbox\matlab\graph2d\title.m

Solution: don't use "title" as a variable name.