d=dlmread('test.dat'); 

graphics_toolkit('gnuplot')
plot(d)

print 'before_setting_yticklabel.png'

%set(gca,'ytick', get(gca,'ytick')) 
set(gca,'yticklabel',sprintf('%.1f|', get(gca,'ytick')))

print 'after_setting_yticklabel.png'


