Function to display variables in MATLAB figures

Say I have to plot the following:

x = [3 4 5 6]; y = [6 7 8 9];

Say in some logic these vectors hold their value for 'case1' which holds an integer value 10 (say).

Now I want this integer -10 i.e. value of 'case1' to display when I plot a MATLAB figure say using plot(x,y). Is there a function that will insert this value onto my plot?

Thank you

Answer 1

[Chirag Gupta]

Where do you want to insert this in the plot? You can insert this as a point on the existing graph using:

hold on;
plot(-10,1,'xk'); % Whats the y coordinate for -10 ?

If you just want to insert it to annotate your graph, you can use:

hold on;
text(2,3,'case1: -10');

If you want to place this as the title:

    title(['case 1:' num2str(-10)]);

[Rohan]

Aplogies the '-' in the pos was to stand for hiphun and not negative sign.

Yeah I want to have it as a title. So does the num2str function display the value '10' on the plot screen title if I did the following?

plot(x,y);

Case_val = 10;

title(['case 1' num2str(Case_val)]);

Cheers

[Chirag Gupta]

should! If you want the quotes around the the number then:

title([' case 1: ''' num2str(val) '''']);