determine what is the most frequent CHARACTER in the file, and how many times was it used

most-common-character-spark-scala.scala

//In the cell below, determine what is the most frequent CHARACTER in the README, and how many times was it used?
//spark and scala

var charCounts2 = readme.flatMap(line => line.toList).
    filter( a => !a.equals("\n") && !a.equals(" ") && !a.equals("") ).
    filter( _ != ' ').
    map(character => (character, 1)).
    reduceByKey((a,b) => a + b).
    reduce((a, b) => if (a._2 > b._2) a else b)
    //take(55).
    //foreach( println)
    
println(charCounts2)