smoothing plots from data

im trying to plot some data "smoothed" out. when i use the below code it is still un-smoothed. How do i improve the smoothing?

plot(x1,p7,x1,px,'r','Linesmoothing','on');

Answer 1

[Grzegorz Knor]

Are you sure that you want use anti-aliasing? Linesmoothing is an undocumented feature.

You can use the smooth function to smooth your data:

http://www.mathworks.com/help/curvefit/smoothing-data.html