<s>
Statsmodels	B-Application
is	O
a	O
Python	B-Language
package	O
that	O
allows	O
users	O
to	O
explore	O
data	O
,	O
estimate	O
statistical	O
models	O
,	O
and	O
perform	O
statistical	O
tests	O
.	O
</s>
<s>
It	O
complements	O
SciPy	B-Application
's	O
stats	O
module	O
.	O
</s>
<s>
Statsmodels	B-Application
is	O
part	O
of	O
the	O
Python	B-Language
scientific	O
stack	O
that	O
is	O
oriented	O
towards	O
data	B-General_Concept
analysis	I-General_Concept
,	O
data	O
science	O
and	O
statistics	O
.	O
</s>
<s>
Statsmodels	B-Application
is	O
built	O
on	O
top	O
of	O
the	O
numerical	O
libraries	O
NumPy	B-Application
and	O
SciPy	B-Application
,	O
integrates	O
with	O
Pandas	B-Application
for	O
data	O
handling	O
,	O
and	O
uses	O
Patsy	O
for	O
an	O
R-like	O
formula	O
interface	O
.	O
</s>
<s>
Graphical	O
functions	O
are	O
based	O
on	O
the	O
Matplotlib	B-Language
library	O
.	O
</s>
<s>
Statsmodels	B-Application
provides	O
the	O
statistical	O
backend	O
for	O
other	O
Python	B-Language
libraries	O
.	O
</s>
<s>
Statsmodels	B-Application
is	O
free	B-Application
software	I-Application
released	O
under	O
the	O
Modified	O
BSD	O
(	O
3-clause	O
)	O
license	O
.	O
</s>
