MEASURES OF DIFFERENCES WITHIN AND BETWEEN GENOMES.(比较两条核酸序列之间的差异性)
DifferenceMeasurement
01 Syntax
SMRUCC.genomics.Analysis.SequenceTools.DNA_Comparative.DeltaSimilarity1998.DifferenceMeasurement
02 Methods
| Name | Overloads | Summary |
|---|---|---|
| Sigma | 3 | |
| __bias | 1 | 使用计算缓存进行计算 |
| SimilarDescription | 1 |
03 Members
Sigma(NucleicAcid, NucleicAcid)
A measure of difference between two sequences f and g (from different organisms or from different regions of the same genome) is the average absolute dinucleotide relative abundance difference calculated as
sigma(f, g) = (1/16)*∑|pXY(f)-pXY(g)|
where the sum extends over all dinucleotides (abbreviated sigma-differences).
Parameters
| Name | Type | Description |
|---|---|---|
f | NucleicAcid | - |
g | NucleicAcid | - |
Sigma(NucleicAcid, NucleicAcid)
Parameters
| Name | Type | Description |
|---|---|---|
f | NucleicAcid | 计算缓存:窗口片段数据或者整条DNA链 |
g | NucleicAcid | - |
Sigma(NucleicAcid, NucleicAcid)
Parameters
| Name | Type | Description |
|---|---|---|
f | NucleicAcid | 计算缓存:窗口片段数据或者整条DNA链 |
g | NucleicAcid | 当需要比对序列上面的某一个片段与整条序列之间的差异性的时候,这个参数可以为该需要进行计算比对的序列片段对象 |
使用计算缓存进行计算
Parameters
| Name | Type | Description |
|---|---|---|
f | NucleicAcid | 计算缓存 |
g | NucleicAcid | - |
X | DNA | - |
Y | DNA | - |
SimilarDescription(
Double)Parameters
| Name | Type | Description |
|---|---|---|
sigma | Double | value from the calculation of function DifferenceMeasurement.Sigma() |