smoothing graph line in Matlab -

i have following graph , make more pleasing eyes smoothing graph. possible ?

tempyr = 1880:1:2014;   temperature = temp(1:2, 1:135); tempval = {'annual mean','5 year mean'} th = zeros(size(tempval)); hold on th = plot( tempyr', temperature', '-o', 'marker', '.'); xlabel( 'year', 'fontsize', 24); ylabel( 'temperature anomaly (degree cel)', 'fontsize', 24 ); legend(th, tempval) grid on 

ideal graph.

try

th = plot( tempyr', temperature', '-o', 'marker', '.','linesmoothing','on'); 

and have here, export_fig reference might prove useful.