Solved
def sample(a:Column,b:Column):Column={ var c:Column=null ;c=a*(1-b);c} error: overloaded method value + with alternatives cannot be applied to (org.apache.spark.sql.Column)
Hi! I'm trying to define a Scala function in Apache Spark that performs some column arithmetic, but I am running into a compilation error.
Here is my code:
Scala
def sample(a: Column, b: Column): Column = {
var c: Column = null
c = a * (1 - b)
c
}
When I try to use this, I get the following error message:
error: overloaded method value + with alternatives cannot be applied to (org.apache.spark.sql.Column)
How can I fix this arithmetic expression so it works with Spark Column objects?
