Addign a new column to a dataframe (based on value of existing column)

[Marco Mistroni]

HI all
 i have a dataFrame with a column ("Age", type double) and i am trying to
create a new
column based on the value of the Age column, using Scala API

this code keeps on complaining

scala> df.withColumn("AgeInt", if (df("Age") > 29.0) lit(1) else lit(0))
<console>:28: error: type mismatch;
 found   : org.apache.spark.sql.Column
 required: Boolean
              df.withColumn("AgeInt", if (df("Age") > 29.0) lit(1) else
lit(0))

any suggestions?

kind regars
 marco