求助，有没有熟悉 ‘PVR’包的啊，有问题请教一下

各位大侠，有没有熟悉PVR（phylogenetic eigenvectors regression）包的啊？本人是R初学者，最近想做phylogenetic eigenvectors regression分析，对于程序包给出的应用实例看不明白，代码如下：library(ape)
library(PVR)
tree <- rcoal(10)
#Decomposing phylogenetic distance matrix derived from tree into a set of orthogonal vectors
x <- PVRdecomp(tree)
trait <- runif(10)
y <- PVR(x, trait = trait, method = "moran")
str(y)
其中我自己有物种之间的遗传距离数据，也就是不需要构建进化树进行分解，我不知道这种情况下，该怎么去进行数据分析，请知道的大侠不吝赐教，先谢谢了

一点一点来吧——

library(PVR)

tree <- rcoal(10)   generate trees by randomly clustering the tips

#Decomposing phylogenetic distance matrixderived from tree into a set of orthogonal vectors

x <- PVRdecomp(tree) 分解phylogenetic距离矩阵（计算基于phylogenetic）成一组正交特征向量

trait <- runif(10) generates random deviates

y <- PVR(x, trait = trait, method ="moran") The phylogenetic eigenvector regression (PVR) starts by performing aneigendecomposition of a pairwise double-centered phylogenetic distance matrixbetween species. The eigenvectors (representing the traits under analysis)estimated values express phylogenetic trends in data and residuals expressindependent evolution of each species.

X: n object of class PVR

trait :A vector, data frame or matrix that contains traits sets (for dataframes and matrices, each column must represent a trait set)

method Character string. A name for the eigenvectors selection method. It can be "moran", "stepwise", "psr" or "sequential".

   
str(y) 显示y的结构

jyt1111 发表于 2013-10-15 16:52
各位大侠，有没有熟悉PVR（phylogenetic eigenvectors regression）包的啊？本人是R初学者，最近想做phylog ...

您好，我想用pvr程序包做气候因子和系统发育对植物物候期的影响，请问您会用pvr进行操作吗，例子里的环境变量就是输入单纯的一个向量，可以输入矩阵吗？