side by side multiply histogram in matlab

Question

I would like to produce a plot like the following in matlab.

Or may be som

Answer 1

Doesn't hist already do the first one?

From help hist:

N = HIST(Y) bins the elements of Y into 10 equally spaced containers
and returns the number of elements in each container.  If Y is a
matrix, HIST works down the columns.

For the second look at help bar