readDataFrame

fun URL.~~readDataFrame~~(header: List<String> = emptyList()): AnyFrame

fun File.~~readDataFrame~~(header: List<String> = emptyList()): AnyFrame

fun Path.~~readDataFrame~~(header: List<String> = emptyList()): AnyFrame

This function is deprecated in favor of the IO-specific functions, like `DataFrame.readCsv()`, and `DataFrame.readJson()`. Will be ERROR in 1.0.