>
> library(MASS)
> Iris <- data.frame(rbind(iris3[,,1], iris3[,,2], iris3[,,3]),
+ Sp = rep(c("s","c","v"), rep(50,3)))
> train <- sample(1:150, 75)
> table(Iris$Sp[train])
c s v
22 23 30
> z <- lda(Sp ~ ., Iris, prior = c(1,1,1)/3, subset = train)
Error in if (targetlist[i] == stringname) { : argument is of length zero
>
> sessionInfo()
R version 2.10.0 (2009-10-26)
i386-apple-darwin9.8.0
locale:
[1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] MASS_7.3-3
Doesn't seem to be a namespace problem:
> lda
function (x, ...)
UseMethod("lda")
<environment: namespace:MASS>
-------------
Gregory Riddick, PhD.
CRTA Research Fellow
National Institutes of Health
National Cancer Institute, Neuro-Oncology Branch
http://home.ccr.cancer.gov/nob/
37 Convent Drive
Building 37, Room 1142
Bethesda, MD 20892-8202
Phone: 301-443-2490
Fax: 240-396-5920
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