How to plot a graph between two variables using interpolation method????

hello all, There is this simple problem i am facing.I am plotting a graph between 't' (time) and 'e'(Energy) which gives me the values of energy at specific time.

I want to plot the interpolation graph between these two variables such that instead of getting specific bars of energy at specific time, i get a continuous signal graph.

SCRIPT IS:

 figure()
 plot(t(1:n),e);

THANX.....

Answer 1

[Image Analyst]

You can use splines, as I show in my demo: http://www.mathworks.com/matlabcentral/answers/75657#answer_85307

Answer 2

[the cyclist]

You can interpolate with the interp1() function.