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tcl
2010 Feb 01
0
working with taxonomic trees: sampling
Dear all,
I am working with taxonomic data, represented as a list of classes,
orders, families, genera and finally species.
> class(mydata)
[1] "data.frame"
> mode(mydata)
[1] "list"
> names(mydata)
[1] "tclass" "torder" "tfamily" "tgenus" "tspecies"
> length(mydata$tclass)
[1] 161590
The first 10 rows look like the following:
> mydata[1:10,]
tclass torder tfamily tgenus
1 Chlorophyta Chlorophyceae Dunali...