hello how to add a column for percent for the current row of counted data?
scala> df2.groupBy("_c1").count.withColumn("percent",f"${col(count)/df2.count}%.2f").show <console>:30: error: type mismatch; This doesn't work. so please help. thanks.
hello how to add a column for percent for the current row of counted data?
scala> df2.groupBy("_c1").count.withColumn("percent",f"${col(count)/df2.count}%.2f").show <console>:30: error: type mismatch; This doesn't work. so please help. thanks.