How can I put a display that shows changing variables in a plot?

I wanted to know if I could put a display that shows me a number that changes in a plot.

[KALYAN ACHARJYA]

Can you elaborate please?

Answer 1

[Aquatris]

Assuming you plot in a for loop and the changing variable is x, below code will update the title of the plot to be equal to x

for i = 1:length(x)
    plot(t,x(i))
    title(x(i))
    pause(0.001)
end

Answer 2

[Adam Danz]

Use h=text(. . .) to create the text object and then update the handle as needed.

Here's a demo

clf()
axh = axes(); 
h = text(.5, .5, '');  % initialize as empty
for i = 1:15
    h.String = i; 
    pause(.5)
end

You may want to format your numeric input using

sprintf(. . .)

h.String = sprintf(. . .);