What code to automatically put the cubic splines in a plot?

Say you have:

x = -10:2:10 y = sin(x)

plot(x,y,'o')

Instead of having to click the Figure Tools then clicking the cubic splines,

is there a code that will automatically activate that?

Also, how would you fill with a colour the area between the splines and the x-axis?

Cheers

Answer 1

[Paul Premakumar]

Why not use the SPLINE command

 plot(x,y)
 figure
 xx = -10:.25:10;
 yy = spline(x,y,xx);
 %plot(xx,yy); % display your data

 % Use area to fill the are under the curve
 area(xx,yy);