<s>
Ploticus	B-Application
is	O
a	O
free	B-Application
,	O
open-source	B-Application
(	O
GPL	B-License
)	O
computer	B-Application
program	I-Application
for	O
producing	O
plots	O
and	O
charts	O
from	O
data	O
.	O
</s>
<s>
It	O
runs	O
under	O
Unix	B-Application
,	O
Solaris	B-Application
,	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
,	O
Linux	B-Application
and	O
Win32	B-Library
systems	O
.	O
</s>
<s>
Ploticus	B-Application
is	O
a	O
mature	O
product	O
with	O
activity	O
,	O
where	O
the	O
last	O
major	O
release	O
(	O
2.42	O
)	O
occurred	O
in	O
May	O
2013	O
.	O
</s>
<s>
Bruce	O
Byfield	O
in	O
Linux.com	O
described	O
Ploticus	B-Application
as	O
,	O
"	O
a	O
...	O
throwback	O
to	O
the	O
days	O
when	O
Unix	B-Application
programs	O
did	O
one	O
thing	O
,	O
and	O
did	O
it	O
well	O
,	O
using	O
a	O
minimum	O
of	O
system	O
resources.	O
"	O
</s>
<s>
At	O
the	O
center	O
of	O
Ploticus	B-Application
lies	O
a	O
scripting	O
language	O
.	O
</s>
<s>
Ploticus	B-Application
supports	O
the	O
following	O
types	O
of	O
plot	O
:	O
line	O
plots	O
,	O
filled	O
line	O
plots	O
,	O
category	O
line	O
plots	O
,	O
ranges	O
sweeps	O
,	O
pie	O
graphs	O
,	O
vertical	O
bar	O
graphs	O
,	O
horizontal	O
bar	O
charts	O
,	O
timelines	O
,	O
floating	O
bar	O
segments	O
,	O
bar	O
proportions	O
,	O
scatter	O
plots	O
,	O
heat	O
maps	O
(	O
density	O
grids	O
)	O
,	O
single	O
variable	O
distribution	O
,	O
error	O
bars	O
,	O
curve	O
fitting	O
,	O
vector	O
plots	O
,	O
Venn	O
diagrams	O
,	O
Venn	O
magnitude	O
charts	O
,	O
tree	O
diagrams	O
.	O
</s>
<s>
Ploticus	B-Application
has	O
been	O
used	O
for	O
:	O
</s>
<s>
Ploticus	B-Application
can	O
be	O
used	O
as	O
a	O
plug-in	O
with	O
various	O
other	O
software	O
such	O
as	O
:	O
</s>
