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nora 2021-07-08 16:46:51 +02:00
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module Average
import Data.String
||| Calculate the average word length of a string
||| @str a string containing words seperated by whitespace
export
average : (str : String) -> Double
average str = let totalLength = sum (wordLengths str)
wordAmount = wordCount str in
cast totalLength / cast wordAmount
where
wordCount : String -> Nat
wordCount str = length (words str)
wordLengths : String -> List Nat
wordLengths str = map length (words str)