Created
November 19, 2011 02:32
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Vowel Histogram
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| let histogram (str:string)= | |
| str.ToCharArray() | |
| |> Seq.map(fun x-> Char.ToLower(x)) | |
| |> Seq.filter(fun x-> vowels.IndexOf(x)>=0) | |
| |> Seq.countBy(fun x-> x) |
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