39 lines
800 B
Scala
39 lines
800 B
Scala
/**
|
|
Faithful conversion of tf-04.py to scala, avg execution time 5.2 seconds
|
|
$ time scala tf04a ../pride-and-prejudice.txt
|
|
(Mr,786)
|
|
(Elizabeth,635)
|
|
(very,473)
|
|
(Darcy,417)
|
|
(such,378)
|
|
(Mrs,343)
|
|
(much,325)
|
|
(more,325)
|
|
(Bennet,322)
|
|
(Bingley,305)
|
|
(Jane,295)
|
|
(Miss,281)
|
|
(one,261)
|
|
(know,239)
|
|
(herself,227)
|
|
(before,225)
|
|
(sister,218)
|
|
(soon,214)
|
|
(never,214)
|
|
(though,212)
|
|
(think,210)
|
|
(time,203)
|
|
(now,197)
|
|
(Wickham,194)
|
|
(well,188)
|
|
|
|
real 0m5.237s
|
|
|
|
*/
|
|
object tf04a extends App {
|
|
def l(f:String) = io.Source.fromFile(f).getLines.mkString(",")
|
|
val s = l("../stop_words.txt").split(",") ++ (1 to 26).map(i=>String.valueOf(Character.toChars(96+i)))
|
|
val w = l(args(0)).split("[^a-zA-Z]+").filter(x => !s.contains(x.toLowerCase))
|
|
w.distinct.map(u=> (u,w.count(_==u))).sortBy(-_._2).take(25).foreach(println)
|
|
}
|