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rapache-sparksparkr

NCHAR alternative in SparkR

I need to count the number of characters in a string, in R we use nchar, what is the alternative function in sparkR

Solution

  • Use length:

     Welcome to
    ____              __ 
   / __/__  ___ _____/ /__ 
  _\ \/ _ \/ _ `/ __/  '_/ 
 /___/ .__/\_,_/_/ /_/\_\   version  2.2.1 
    /_/ 


 SparkSession available as 'spark'.
> df <- createDataFrame(data.frame(s=c("foo", "foobar")))
> head(select(df, length(df$s)))
  length(s)
1         3
2         6