Neglect datapoints for a plot

Suppose I have this signal that ranges from 2000-7000 seconds and I want to neglect everything after 7000 seconds because it remains a constant value. How would I do this?

Answer 1

[Star Strider]

If you have a time vector t corresponding to your signal vector f:

 t_idx = find(t <= 7000);
 f1 = f(t_idx);
 t1 = t(t_idx);

Using f1 and t1 avoids overwriting your original f and t vectors.

[T]

What if there are peaks before 2000 that I want to neglect?

[Walter Roberson]

t_idx = find(t >= 2000 & t <= 7000);

[Star Strider]

Thank you, Walter.