我是R-Matrix的新手。我试图用R函数BunchKaufman(x,...)http://stat.ethz.ch/R-manual/R-devel/library/Matrix/html/BunchKaufman-methods.html
将奇异协方差矩阵分解为LDL'形式请帮助我通过尾随“功能错误...”
过去的第一垒A <- matrix( c( 0.184, 0.228, 0.252, 0.022, -0.022, 0.228, 1.053, 0.142, 0.106, -0.106,
+ 0.252, 0.142, 0.382, 0.015, -0.015, 0.022, 0.106, 0.015, 0.055, -0.055,
+ -0.022, -0.106, -0.015, -0.055, 0.055), ncol=5, nrow=5)
BunchKaufman(A)
Error in function (classes, fdef, mtable) :
unable to find an inherited method for function ‘BunchKaufman’ for signature ‘"matrix"’
答案 0 :(得分:1)
以下作品:
A&lt; - forceSymmetric(A)
syA&lt; - new(“dsyMatrix”,A,Dim = as.integer(c(nrow(A),nrow(A))),uplo =“L”)
BunchKaufman(SYA)