Dataframe 0.12 Help

Column accessors API

For frequently accessed columns type casting can be reduced by Column Accessors:

val survived by column<Boolean>() // accessor for Boolean column with name 'survived' val home by column<String>() val age by column<Int?>() val name by column<String>() val lastName by column<String>()

Now columns can be accessed in a type-safe way using invoke operator:"titanic.csv") .add(lastName) { name().split(",").last() } .dropNulls { age } .filter { survived() && home().endsWith("NY") && age()!! in 10..20 }

The titanic.csv file can be found here.

Last modified: 01 December 2023