<s>
Comparison	B-Application
diagram	I-Application
or	O
comparative	B-Application
diagram	I-Application
is	O
a	O
general	O
type	O
of	O
diagram	O
,	O
in	O
which	O
a	O
comparison	O
is	O
made	O
between	O
two	O
or	O
more	O
objects	O
,	O
phenomena	O
or	O
groups	O
of	O
data	O
.	O
</s>
<s>
A	O
comparison	B-Application
diagram	I-Application
or	O
can	O
offer	O
qualitative	O
and/or	O
quantitative	O
information	O
.	O
</s>
<s>
This	O
type	O
of	O
diagram	O
can	O
also	O
be	O
called	O
comparison	B-Application
chart	I-Application
or	O
comparison	B-Application
chart	I-Application
.	O
</s>
<s>
The	O
diagram	O
itself	O
is	O
sometimes	O
referred	O
to	O
as	O
a	O
cluster	B-Application
diagram	I-Application
.	O
</s>
<s>
A	O
comparison	B-Application
diagram	I-Application
is	O
a	O
general	O
type	O
of	O
diagram	O
,	O
meaning	O
a	O
class	O
of	O
specific	O
diagrams	O
and	O
charts	O
,	O
in	O
which	O
a	O
comparison	O
is	O
made	O
between	O
two	O
or	O
more	O
objects	O
,	O
phenomena	O
or	O
groups	O
of	O
data	O
.	O
</s>
<s>
Comparison	B-Application
diagrams	I-Application
can	O
be	O
used	O
in	O
research	O
projects	O
,	O
to	O
give	O
an	O
overview	O
of	O
existing	O
possibilities	O
and	O
to	O
validate	O
models	O
.	O
</s>
<s>
Comparison	B-Application
charts	I-Application
originate	O
from	O
the	O
late	O
18th	O
century	O
and	O
early	O
19th	O
century	O
.	O
</s>
<s>
One	O
of	O
its	O
roots	O
are	O
the	O
18th	O
century	O
nautical	B-Application
chart	I-Application
,	O
which	O
could	O
offer	O
a	O
comparison	O
of	O
shore	O
or	O
coastal	O
profiles	O
.	O
</s>
<s>
These	O
were	O
made	O
popular	O
by	O
the	O
English	O
cartographer	O
and	O
a	O
publisher	O
of	O
maps	O
William	O
Faden	O
(	O
1749	O
–	O
1836	O
)	O
.Another	O
root	O
of	O
comparison	B-Application
diagrams	I-Application
are	O
the	O
earliest	O
thematic	B-Application
maps	I-Application
.	O
</s>
<s>
In	O
France	O
in	O
1872	O
Charles-René	O
de	O
Fourcroy	O
published	O
one	O
of	O
the	O
first	O
economic	O
thematic	B-Application
map	I-Application
,	O
which	O
he	O
named	O
"	O
Table	B-Application
poléométrique	O
"	O
(	O
Poleometric	O
Table	B-Application
)	O
.	O
</s>
<s>
Other	O
types	O
of	O
comparison	B-Application
charts	I-Application
would	O
soon	O
appear	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
"	O
Comprehensive	O
atlas	O
:	O
geographical	O
,	O
historical	O
&	O
commercial	O
,	O
"	O
published	O
by	O
William	O
D	O
.	O
Ticknor	O
in	O
1835	O
contained	O
a	O
series	O
of	O
different	O
comparison	B-Application
diagrams	I-Application
and	O
charts	O
on	O
:	O
<	O
ref>Bradford	O
,	O
Thomas	O
Gamaliel	O
.	O
</s>
<s>
Other	O
popular	O
themes	O
in	O
19th	O
century	O
comparison	B-Application
diagrams	I-Application
were	O
the	O
sizes	O
of	O
lakes	O
,	O
the	O
lengths	O
of	O
waterfalls	O
,	O
and	O
the	O
sizes	O
of	O
Islands	O
.	O
</s>
<s>
"	O
See	O
here	O
In	O
this	O
maps	O
the	O
lengths	O
of	O
the	O
rivers	O
,	O
were	O
presented	O
in	O
a	O
bar	B-Application
chart	I-Application
with	O
horizontal	O
bars	O
.	O
</s>
<s>
In	O
1826	O
the	O
same	O
data	O
was	O
presented	O
in	O
a	O
bar	B-Application
chart	I-Application
with	O
vertical	O
bars	O
,	O
entitled	O
"	O
Table	B-Application
of	O
the	O
comparative	O
lengths	O
of	O
the	O
principal	O
Rivers	O
throughout	O
the	O
World	O
"	O
(	O
see	O
image	O
)	O
.	O
</s>
<s>
Willard	O
C	O
.	O
Brinton	O
was	O
one	O
of	O
the	O
first	O
to	O
theorize	O
about	O
the	O
existence	O
and	O
role	O
or	O
comparison	O
in	O
statistical	B-Application
graphics	I-Application
.	O
</s>
<s>
Quantitative	O
charts	O
such	O
as	O
line	B-Application
chart	I-Application
,	O
bar	B-Application
chart	I-Application
,	O
pie	B-Application
chart	I-Application
,	O
radar	B-Application
chart	I-Application
,	O
bubble	B-Application
chart	I-Application
,	O
scatter	B-Application
diagram	I-Application
etc	O
.	O
</s>
