How can I tokenize a string in R? - r

Question

I am trying to calculate readability, but it seems everything is written to expect either a file path or a Corpus. How do I handle a string?
Error (on the tokenization step):
Error: Unable to locate
I tried:
str<-"Readability zero one. Ten, Eleven.", "The cat in a dilapidated tophat."
library(koRpus)
ll.tagged <- tokenize(str, lang="en")
readability(ll.tagged,measure="Flesch.Kincaid")

Answer 1

You need to download the language file
install.koRpus.lang(c("en"))
library(koRpus.lang.en)
ll.tagged <- tokenize(str, format = "obj", lang = "en")
ll.tagged
doc_id token tag lemma lttr wclass desc stop stem idx sntc
1 <NA> Readability word.kRp 11 word <NA> <NA> <NA> 1 1
2 <NA> zero word.kRp 4 word <NA> <NA> <NA> 2 1
3 <NA> one word.kRp 3 word <NA> <NA> <NA> 3 1
4 <NA> . .kRp 1 fullstop <NA> <NA> <NA> 4 1
5 <NA> Ten word.kRp 3 word <NA> <NA> <NA> 5 2
6 <NA> , ,kRp 1 comma <NA> <NA> <NA> 6 2
[...]
10 <NA> cat word.kRp 3 word <NA> <NA> <NA> 10 3
11 <NA> in word.kRp 2 word <NA> <NA> <NA> 11 3
12 <NA> a word.kRp 1 word <NA> <NA> <NA> 12 3
13 <NA> dilapidated word.kRp 11 word <NA> <NA> <NA> 13 3
14 <NA> tophat word.kRp 6 word <NA> <NA> <NA> 14 3
15 <NA> . .kRp 1 fullstop <NA> <NA> <NA> 15 3