Map Transformation code in Scala
val arr = 1 to 10000
val nums = sc.parallelize(arr)
def multiplyByTwo(x:Int):Int = x*2
Write the following command in a new cell:
multiplyByTwo(5)
Write the following command in a new cell:
var dbls = nums.map(multiplyByTwo);
dbls.take(5)
Transformations - filter() code in Scala
var arr = 1 to 1000
var nums = sc.parallelize(arr)
def isEven(x:Int):Boolean = x%2 == 0
Write the following commands in a new cell:
var evens = nums.filter(isEven)
evens.take(3)
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