<s>
The	O
median	B-General_Concept
polish	I-General_Concept
is	O
a	O
simple	O
and	O
robust	O
exploratory	B-General_Concept
data	I-General_Concept
analysis	I-General_Concept
procedure	O
proposed	O
by	O
the	O
statistician	O
John	O
Tukey	O
.	O
</s>
<s>
The	O
purpose	O
of	O
median	B-General_Concept
polish	I-General_Concept
is	O
to	O
find	O
an	O
additively-fit	O
model	O
for	O
data	O
in	O
a	O
two-way	O
layout	O
table	O
(	O
usually	O
,	O
results	O
from	O
a	O
factorial	O
experiment	O
)	O
of	O
the	O
form	O
row	O
effect	O
+	O
column	O
effect	O
+	O
overall	O
median	O
.	O
</s>
<s>
Median	B-General_Concept
polish	I-General_Concept
utilizes	O
the	O
medians	O
obtained	O
from	O
the	O
rows	O
and	O
the	O
columns	O
of	O
a	O
two-way	O
table	O
to	O
iteratively	O
calculate	O
the	O
row	O
effect	O
and	O
column	O
effect	O
on	O
the	O
data	O
.	O
</s>
<s>
To	O
carry	O
out	O
median	B-General_Concept
polish	I-General_Concept
:	O
</s>
