<s>
SOFA	B-Language
Statistics	I-Language
is	O
an	O
open-source	B-Application
statistical	B-Algorithm
package	I-Algorithm
.	O
</s>
<s>
It	O
has	O
a	O
graphical	B-Application
user	I-Application
interface	I-Application
and	O
can	O
connect	O
directly	O
to	O
MySQL	B-Application
,	O
PostgreSQL	B-Application
,	O
SQLite	B-Language
,	O
MS	O
Access	O
(	O
map	O
)	O
,	O
and	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
.	O
</s>
<s>
Data	O
can	O
also	O
be	O
imported	O
from	O
CSV	O
and	O
Tab-Separated	B-Protocol
files	O
or	O
spreadsheets	O
(	O
Microsoft	B-Application
Excel	I-Application
,	O
OpenOffice.org	B-Application
Calc	I-Application
,	O
Gumeric	B-Language
,	O
Google	B-Application
Docs	I-Application
)	O
.	O
</s>
<s>
The	O
main	O
statistical	O
tests	O
available	O
are	O
Independent	B-General_Concept
and	I-General_Concept
Paired	I-General_Concept
t-tests	I-General_Concept
,	O
Wilcoxon	B-General_Concept
signed	I-General_Concept
ranks	I-General_Concept
,	O
Mann	B-General_Concept
–	I-General_Concept
Whitney	I-General_Concept
U	I-General_Concept
,	O
Pearson	B-General_Concept
's	I-General_Concept
chi	I-General_Concept
squared	I-General_Concept
,	O
Kruskal	B-General_Concept
Wallis	I-General_Concept
H	I-General_Concept
,	O
one-way	B-General_Concept
ANOVA	I-General_Concept
,	O
Spearman	B-General_Concept
's	I-General_Concept
R	I-General_Concept
,	O
and	O
Pearson	O
's	O
R	B-Language
.	O
Nested	O
tables	O
can	O
be	O
produced	O
with	O
row	O
and	O
column	O
percentages	O
,	O
totals	O
,	O
standard	B-General_Concept
deviation	I-General_Concept
,	O
mean	O
,	O
median	O
,	O
lower	O
and	O
upper	O
quartiles	O
,	O
and	O
sum	O
.	O
</s>
<s>
Installation	O
packages	O
are	O
available	O
for	O
several	O
Operating	B-General_Concept
Systems	I-General_Concept
such	O
as	O
Microsoft	B-Application
Windows	I-Application
,	O
Ubuntu	B-Operating_System
,	O
Arch	O
Linux	O
,	O
Linux	B-Application
Mint	I-Application
,	O
and	O
macOS	B-Application
(	O
Leopard	O
upwards	O
)	O
.	O
</s>
<s>
SOFA	B-Language
Statistics	I-Language
is	O
written	O
in	O
Python	B-Language
,	O
and	O
the	O
widget	B-Library
toolkit	I-Library
used	O
is	O
WxPython	B-Language
.	O
</s>
<s>
The	O
statistical	O
analyses	O
are	O
based	O
on	O
functions	O
available	O
through	O
the	O
SciPy	B-Application
stats	O
module	O
.	O
</s>
<s>
The	O
features	O
available	O
within	O
SOFA	O
for	O
statistical	O
analysis	O
are	O
limited	O
compared	O
to	O
those	O
found	O
in	O
Open	O
Source	O
R	B-Language
Statistics	I-Language
Software	I-Language
,	O
which	O
contains	O
a	O
large	O
repository	B-Language
of	I-Language
statistics	I-Language
packages	I-Language
.	O
</s>
