I stumbled over

DataFrame.readDelim(
        SleepPattern::class.java.getResourceAsStream("/data/iris.txt")!!,
        csvType = CSVType.TDF,
        delimiter = '\t'
    )

Without the seemingly redundant

delimiter

argument, it wont read the file correctly (but still reading with

,

as delimiter) . I know there is also

readTsv

but

readDelim

is sometimes handy as well. Is this a bug?

Kind of bug, yes. Looks like in this overload

delimeter

overrides

csvType

. For another,

csvType

will work:

public fun DataFrame.Companion.readDelim(
    reader: Reader,
    format: CSVFormat = CSVFormat.DEFAULT.withHeader(),
    colTypes: Map<String, ColType> = mapOf(),
    skipLines: Int = 0,
    readLines: Int? = null,
    parserOptions: ParserOptions? = null,
): AnyFrame

I wouldn't say it's intended, should be fixed