<s>
A	O
mosaic	B-Application
plot	I-Application
,	O
Marimekko	B-Application
chart	I-Application
,	O
or	O
sometimes	O
percent	O
stacked	O
bar	B-Application
plot	I-Application
is	O
a	O
graphical	O
visualization	O
of	O
data	O
from	O
two	O
or	O
more	O
qualitative	O
variables	O
.	O
</s>
<s>
Mosaic	B-Application
plots	I-Application
were	O
introduced	O
by	O
Hartigan	O
and	O
Kleiner	O
in	O
1981	O
and	O
expanded	O
on	O
by	O
Friendly	O
in	O
1994	O
.	O
</s>
<s>
Mosaic	B-Application
plots	I-Application
are	O
also	O
called	O
Marimekko	O
or	O
Mekko	O
charts	O
because	O
they	O
resemble	O
some	O
Marimekko	O
prints	O
.	O
</s>
<s>
Marimekko	B-Application
charts	I-Application
are	O
colored	O
according	O
to	O
the	O
category	O
levels	O
,	O
as	O
in	O
the	O
image	O
.	O
</s>
<s>
As	O
with	O
bar	B-Application
charts	I-Application
and	O
spineplots	O
,	O
the	O
area	O
of	O
the	O
tiles	O
,	O
also	O
known	O
as	O
the	O
bin	O
size	O
,	O
is	O
proportional	O
to	O
the	O
number	O
of	O
observations	O
within	O
that	O
category	O
.	O
</s>
<s>
An	O
example	O
of	O
mosaic	B-Application
plots	I-Application
uses	O
data	O
from	O
the	O
passengers	O
on	O
the	O
Titanic	B-Application
.	O
</s>
<s>
Another	O
ordering	O
will	O
result	O
in	O
a	O
different	O
mosaic	B-Application
plot	I-Application
,	O
i.e.	O
,	O
the	O
order	O
of	O
the	O
variables	O
is	O
significant	O
as	O
for	O
all	O
multivariate	O
plots	O
.	O
</s>
<s>
Unlike	O
,	O
for	O
example	O
,	O
the	O
boxplot	B-Application
or	O
QQ	B-Application
plot	I-Application
,	O
it	O
is	O
not	O
possible	O
for	O
the	O
mosaic	B-Application
plot	I-Application
to	O
plot	O
a	O
confidence	O
interval	O
.	O
</s>
<s>
The	O
mosaic	B-Application
plot	I-Application
has	O
been	O
criticised	O
for	O
making	O
the	O
data	O
hard	O
to	O
perceive	O
and	O
to	O
compare	O
visually	O
,	O
because	O
the	O
values	O
correspond	O
to	O
areas	O
.	O
</s>
