<s>
knitr	B-Application
is	O
an	O
engine	O
for	O
dynamic	O
report	O
generation	O
with	O
R	B-Language
.	O
It	O
is	O
a	O
package	B-Language
in	O
the	O
programming	O
language	O
R	B-Language
that	O
enables	O
integration	O
of	O
R	B-Language
code	I-Language
into	O
LaTeX	B-Application
,	O
LyX	B-Language
,	O
HTML	B-Language
,	O
Markdown	O
,	O
AsciiDoc	B-Language
,	O
and	O
reStructuredText	B-Language
documents	O
.	O
</s>
<s>
The	O
purpose	O
of	O
knitr	B-Application
is	O
to	O
allow	O
reproducible	O
research	O
in	O
R	B-Language
through	O
the	O
means	O
of	O
literate	B-Application
programming	I-Application
.	O
</s>
<s>
It	O
is	O
licensed	O
under	O
the	O
GNU	B-License
General	I-License
Public	I-License
License	I-License
.	O
</s>
<s>
knitr	B-Application
was	O
inspired	O
by	O
Sweave	B-Application
and	O
written	O
with	O
a	O
different	O
design	O
for	O
better	O
modularization	O
,	O
so	O
it	O
is	O
easier	O
to	O
maintain	O
and	O
extend	O
.	O
</s>
<s>
Sweave	B-Application
can	O
be	O
regarded	O
as	O
a	O
subset	O
of	O
knitr	B-Application
in	O
the	O
sense	O
that	O
all	O
features	O
of	O
Sweave	B-Application
are	O
also	O
available	O
in	O
knitr	B-Application
.	O
</s>
<s>
Some	O
of	O
knitr	B-Application
's	O
extensions	O
include	O
the	O
R	B-Language
Markdown	O
format	O
(	O
used	O
in	O
reports	O
published	O
on	O
RPubs	O
)	O
,	O
caching	O
,	O
TikZ	B-Operating_System
graphics	O
and	O
support	O
to	O
other	O
languages	O
such	O
as	O
Python	B-Language
,	O
Perl	B-Language
,	O
C++	B-Language
,	O
Shell	B-Language
scripts	I-Language
and	O
CoffeeScript	B-Application
,	O
and	O
so	O
on	O
.	O
</s>
<s>
knitr	B-Application
is	O
officially	O
supported	O
in	O
the	O
RStudio	B-Application
IDE	B-Application
for	O
R	B-Language
,	O
LyX	B-Language
,	O
Emacs/ESS	B-Application
and	O
the	O
Architect	B-Application
IDE	B-Application
for	O
data	O
science	O
.	O
</s>
<s>
Knitr	B-Application
consists	O
of	O
standard	O
e.g.	O
</s>
<s>
Markdown	O
document	O
with	O
R-code	O
chunks	O
integrated	O
in	O
the	O
document	O
.	O
</s>
<s>
The	O
implementation	O
of	O
logical	O
conditions	O
in	O
R	B-Language
can	O
provide	O
text	O
elements	O
for	O
the	O
dynamic	O
report	O
depended	O
on	O
the	O
statistical	O
analysis	O
.	O
</s>
