help with label

hello, i have a trouble with using labels, xlabel and ylabel when plotting a graph.

i get this fellowing message: Error in ==> Untitled6 at 6 xlabel('t-verdi')

[Wayne King]

please provide more of the code. There's nothing per se about xlabel('t-verdi') that should throw an error

[peri]

heres the rest of the code:

t = 0 : 0.1 : 4;

y = 1 + exp( - 0.05 * t.^2);

plot(t, y)

axis( [ 0 4 0 3 ] )

xlabel(’t-verdi’ )

ylabel(’y-verdi’ )

title(’Utvikling av . . . ’ )

text( 2, 2.5, ’Grafen laget 12.12.01’ )

gtext(’Grafen er laget ved MATLAB’

[Daniel Shub]

What is the error message?

Answer 1

[Daniel Shub]

I am guessing you have a variable somewhere called xlabel. What do you get with

which xlabel -all

it should be something like .../toolbox/matlab/graph2d/xlabel.m. If you get "xlabel is a variable", a drastically different path, or multiple paths, that is your problem.

Answer 2

[Wayne King]

Have you copied in pasted your code from some Windows application where ' is not the single quote that MATLAB expects?

t = 0 : 0.1 : 4; 
y = 1 + exp( - 0.05 * t.^2); 
plot(t, y) 
axis( [ 0 4 0 3 ] ) 
xlabel('t-verdi') 
ylabel('y-verdi' ) 
title('Utvikling av . . . ' ) 
text( 2, 2.5, 'Grafen laget 12.12.01') 
gtext('Grafen er laget ved MATLAB');

If you copy your code above into the MATLAB editor, you'll see that the single quotes do not appear properly. They will appear as read apostrophes and the string is not correct for MATLAB.

[Wayne King]

copy and paste the code I've entered. I've corrected your single quotes.

[peri]

ive changed single quotes myself, but still get the message

Answer 3

[Daniel Shub]

What type of single quotes are you using? It could be the code formating in my browser, but your quotes look funky.