kotlin-spark-api_3.3.2_2.13/org.jetbrains.kotlinx.spark.api/unaryMinus

unaryMinus

operator fun Column.unaryMinus(): Column

Unary minus, i.e. negate the expression.

// Scala: select the amount column and negates all values.
df.select( -df("amount") )

// Kotlin:
import org.jetbrains.kotlinx.spark.api.*
df.select( -df("amount") )

// Java:
import static org.apache.spark.sql.functions.*;
df.select( negate(col("amount") );