Hi, All:
Attached please find a symmetric, indefinite matrix for which
'eigen(...)$vectors' included NAs:
> load("eigenBug.Rdata")
> sum(is.na(eigen(eigenBug)$vectors))
[1] 5670
> sessioninfo()
Error: could not find function "sessioninfo"
> sessionInfo()
R version 2.4.1 (2006-12-18)
i386-pc-mingw32
locale:
LC_COLLATE=English_United States.1252;LC_CTYPE=English_United
States.1252;LC_MONETARY=English_United
States.1252;LC_NUMERIC=C;LC_TIME=English_United States.1252
attached base packages:
[1] "stats" "graphics" "grDevices" "utils" "datasets" "methods"
[7] "base"
Using EISPACK does NOT return NAs:
> sum(is.na(eigen(eigenBug, EISPACK=TRUE)$vectors))
[1] 0
I traced the problem to the following line in 'eigen':
z <- if (!complex.x)
.Call("La_rs", x, only.values, PACKAGE = "base")
Comments?
Best Wishes,
Spencer Graves
______________________________________________
R-devel@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-devel
