# sum¶

sum is an aggregate function that returns the sum of all values in the specified column.

Syntax:

• sum(df$col) Parameters: • df: Any SparkR DataFrame • col: Column in SparkR DataFrame Output: • Column Object # Create SparkR DataFrame df <- createDataFrame(mtcars) head(df)  # Sum total mpg in df head(select(df, sum(df$mpg)))