I have a list of scientific names in a data set. I would like to split the
names into genus, species and subspecies. Not all names include a
subspecies. Could someone show me how to do this?
My example code is:
a <- matrix(c('genusA speciesA', 10,
'genusB speciesAA', 20,
'genusC speciesAAA subspeciesA', 15,
'genusC speciesAAA subspeciesB', 25), nrow=4, byrow=TRUE)
aa <- data.frame(a)
colnames(aa) <- c('species', 'counts')
aa
# The code returns
species counts
1 genusA speciesA 10
2 genusB speciesAA 20
3 genusC speciesAAA subspeciesA 15
4 genusC speciesAAA subspeciesB 25
# I would like there to be 4 columns as below
genus species subspecies counts
genusA speciesA no.subspecies 10
genusB speciesAA no.subspecies 20
genusC speciesAAA subspeciesA 15
genusC speciesAAA subspeciesB 25
I have tried using 'strsplit', but cannot get the desired result. Thank you
for any help with this.
Mark Miller
Gainesville, Florida
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