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kfree
2000 Jun 07
1
tree error
...ation tree, and have received an error
I'm unfamiliar with. Following is the R code, and the first 10 lines of
my matrix. Any help would be appreciated.
> kuv.tree <- read.table("kuv3_mantelmatrix.txt",header=T,sep="\t")
> library(tree)
> attach(kuv.tree)
> ktree <- tree(Species ~ Drig + dwellln, data=kuv.tree)
Error in arg == choices : comparison (1) is possible only for vector types
Number Species Drig DShore dwellln Depth X Y
1 0 26019.2 32311 10.1666 -20.5872 47528.1 -20268.2
2 0 28284.3 36400.6 10.2501 -24.5176 49528.1 -15268.2
3 0 51312.8 71175.8...