how to add numbers above the tips of a bar chart

I have an array

b=[ 1 2 3]

then i use bar(b)

now how can i write the value of each bar (so the elements of the array) over each bar.

Answer 1

[Rik]

b=[1 2 3];
labels=arrayfun(@num2str,b,'Uni',0);
bar(b)
text(1:numel(b),b+0.1,labels)

[Tariq Hammoudeh]

Is it possible to make the graph bigger than 3, so the y axis extends past 3, just to make some space between the bar and the top of the figure?

[Walter Roberson]

b=[1 2 3];
labels=arrayfun(@num2str,b,'Uni',0);
bar(b)
text(1:numel(b),b+0.1,labels)

ax = gca;
yL = ax.YLim;
ax.YLim = [yL(1), yL(2) + 1/2];

[Tariq Hammoudeh]

@Walter Roberson Thank you for that.

Just one more question, im using:

xticks(1:3);

xticklabels({'one', 'two' , 'three'})

How can i increase the font size, because

FontSize

doesnt work in xticklabels

[Rik]

The documentation of the axes properties states the following:

The font size affects the title, axis labels, and tick labels.

So to adjust the tick label font you will have to change the axes font size.