Skip to main content
Search
Explore journals
Get published
About BMC
My account
Search all BMC articles
Search
Algorithms for Molecular Biology
Home
About
Articles
Submission Guidelines
Table 1
The quantities that we use for expressing the skewness of the MPD
From:
Computing the skewness of the phylogenetic mean pairwise distance in linear time
I)
TC
(
T
)
=
∑
{
u
,
v
}
∈
Δ
(
S
)
cost
(
u
,
v
)
II)
CB
(
T
)
=
∑
{
u
,
v
}
∈
Δ
(
S
)
cos
t
3
(
u
,
v
)
III)
∀
e
∈
E
,
TC
(
e
)
=
∑
{
u
,
v
}
∈
Δ
(
S
)
e
∈
p
(
u
,
v
)
cost
(
u
,
v
)
IV)
∀
e
∈
E
,
SQ
(
e
)
=
∑
{
u
,
v
}
∈
Δ
(
S
)
e
∈
p
(
u
,
v
)
cos
t
2
(
u
,
v
)
V)
∀
e
∈
E
,
Mult
(
e
)
=
∑
{
u
,
v
}
∈
Δ
(
S
)
e
∈
p
(
u
,
v
)
TC
(
u
)
·
TC
(
v
)
VI)
∀
u
∈
S
,
SM
(
u
)
=
∑
v
∈
S
∖
{
u
}
cost
(
u
,
v
)
·
TC
(
v
)
VII)
∀
e
∈
E
,
TC
sub
(
e
)
=
∑
u
∈
S
(
e
)
cost
(
u
,
e
)
VIII)
∀
e
∈
E
,
SQ
sub
(
e
)
=
∑
u
∈
S
(
e
)
cos
t
2
(
u
,
e
)
IX)
∀
e
∈
E
,
PC
(
e
)
=
∑
u
∈
S
cost
(
u
,
e
)
X)
∀
e
∈
E
,
PSQ
(
e
)
=
∑
u
∈
S
cos
t
2
(
u
,
e
)
XI)
∀
e
∈
E
,
QD
(
e
)
=
∑
u
∈
S
(
e
)
∑
v
∈
S
(
e
)
∖
{
u
}
cost
(
u
,
v
)
2
Back to article page