Hello everyone. I have a question about the `dataF...

# datascience

[Sinan Gunes]

Hello everyone. I have a question about the dataFrame project. I would like to use custom enums, as property read from CSV. Is there a way to do it?

Thanks 👍

[Nikita Klimenko [JB]]

Hi! If you already have an enum declaration

enum class Direction {
    NORTH,
    SOUTH,
    WEST,
    EAST,
}

You can do this

dataFrameOf("direction")("NORTH", "WEST")
    .convert("direction").to<Direction>()

Is this what you want, or something more generic / automatic?

[Sinan Gunes]

hey @Natalia Mishina my case was:

id,name,direction,flag
1,Austin,SOUTH,0x11
2,Canada,NORTH,0x12

and I managed to use like this

val cities = DataFrame.readCSV(file).convertTo<Map> {
  parser { it.hexToInt(format) }
}

thanks for the response.
----
A small feedback:
the whole convertTo is magic without deterministic order or field selector. And the documentation there could be improved.