Enter in XTickLabel , how to?

I am editting a graph. I was giving names to each bar with xticklabel. But the way it creates isnt looking nice.

 set(gca,'XTickLabel',{['bar1' num2str(DATA)]})

this creates below the bar,

 bar1 DATA

what i want is

• bar1
• DATA (enter in between)

so how to do this?

Answer 1

[Jan]

set(gca,'XTickLabel', ['bar1', char(10), num2str(DATA)])

[Hello kity]

char(10) creates a square next to 'bar1'. it doesnt enter...

Answer 2

[Hello kity]

char(10) didnt do the job, does anyone else know how you can make matlab use a second line in the x-axis?