relationshipAdditive(GeneticsPed)
relationshipAdditive()所属R语言包:GeneticsPed
Additive relationship matrix and its inverse
添加剂关系矩阵及其逆
译者:生物统计家园网 机器人LoveR
描述----------Description----------
relationshipAdditive creates additive relationship matrix, while inverseAdditive creates its inverse directly from a pedigree. kinship is another definition of relationship and is equal to half of additive relationship.
relationshipAdditive创建添加剂的关系矩阵,而inverseAdditive从家谱创建它的逆。 kinship是另一个关系的定义,是平等的关系添加剂的一半。
用法----------Usage----------
relationshipAdditive(x, sort=TRUE, names=TRUE, ...)
inverseAdditive(x, sort=TRUE, names=TRUE, ...)
kinship(x, sort=TRUE, names=TRUE, ...)
参数----------Arguments----------
参数:x
Pedigree
系谱
参数:sort
logical, for the computation the pedigree needs to be sorted, but results are sorted back to original sorting (sort=TRUE) or not (sort=FALSE)
计算逻辑,系谱需要进行排序,但结果进行排序回原来的排序(排序= TRUE),或不(排序为FALSE)
参数:names
logical, should returned matrix have row/colnames; this can be used to get leaner matrix
逻辑,应返回矩阵有行/ colnames;这可以用来得到精简的矩阵
参数:...
arguments for other methods
为其他方法的参数
Details
详情----------Details----------
Additive or numerator relationship matrix is symetric and contains 1 + F_i on diagonal, where F_i is an inbreeding coefficients (see inbreeding) for subject i. Off-diagonal elements represent numerator or relationship coefficient bewteen subjects i and j as defined by Wright (1922). Henderson (1976) showed a way to setup inverse of relationship matrix directly. Mrode (2005) has a very nice introduction to these concepts.
添加剂或分子的关系矩阵是对称的,并且包含1 + F_i对角,在那里F_i是近交系数(见inbreeding)受i。非对角线元素代表分子或关系系数董孝斌科目i和j赖特(1922)的定义。恒基(1976)显示方式设置直接关系矩阵的逆。 mrode(2005年)有一个非常好的介绍这些概念。
Take care with sort=FALSE, names=FALSE. It is your own responsibility to assure proper handling in this case.
sort=FALSE, names=FALSE采取照顾。这是你自己的责任,以保证在这种情况下,妥善处理。
值----------Value----------
A matrix of n * n dimension, where n is number of
n * n维的矩阵,其中n数
作者(S)----------Author(s)----------
Gregor Gorjanc and Dave A. Henderson
参考文献----------References----------
numerator relationship matrix used in prediction of breeding values. Biometrics 32(1):69-83
values. 2nd edition. CAB International. ISBN 0-85199-000-2 http://www.amazon.com/gp/product/0851990002
American Naturalist 56:330-338
参见----------See Also----------
Pedigree, inbreeding and
Pedigree,inbreeding“
举例----------Examples----------
data(Mrode2.1)
Mrode2.1$dtB <- as.Date(Mrode2.1$dtB)
x2.1 <- Pedigree(x=Mrode2.1, subject="sub", ascendant=c("fat", "mot"),
ascendantSex=c("M", "F"), family="fam", sex="sex",
generation="gen", dtBirth="dtB")
(A <- relationshipAdditive(x2.1))
fractions(A)
solve(A)
inverseAdditive(x2.1)
relationshipAdditive(x2.1[3:6, ])
## Compare the speed[#比较的速度。]
ped <- generatePedigree(nId=10, nGeneration=3, nFather=1, nMother=2)
system.time(solve(relationshipAdditive(ped)))
system.time(inverseAdditive(ped))
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注:
注1:为了方便大家学习,本文档为生物统计家园网机器人LoveR翻译而成,仅供个人R语言学习参考使用,生物统计家园保留版权。
注2:由于是机器人自动翻译,难免有不准确之处,使用时仔细对照中、英文内容进行反复理解,可以帮助R语言的学习。
注3:如遇到不准确之处,请在本贴的后面进行回帖,我们会逐渐进行修订。
|