WebSep 24, 2024 · Consider you are trying to make each column in the row as a string separated by a delimiter to convert rdd rows to a string val out_rdd = rdd.map (x => x.mkString (",") to convert dataframe/dataset rows to string val out_rdd = df.rdd.map (x => x.mkString (",") Hope this helps! Share Improve this answer Follow edited Jun 20, 2024 at 9:12 WebAug 13, 2024 · The mkString () method is utilized to display all the elements of the list in a string along with a separator. Method Definition: def mkString (sep: String): String Return Type: It returns all the elements of the list in a string along with a separator. Example #1: object GfG { def main (args:Array [String]) { val m1 = List (2, 3, 5, 7, 8)
What is the mkString() function of an array in Scala?
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Scala Tutorial - MkString Function Example - allaboutscala.com
WebThe mkString () function of an array is used to display all elements of an array as a string using a separator string. This method is very useful because, ordinarily, the elements will not be displayed when printing an array. Syntax Syntax for the mkString () method Parameters WebIn SAS®, an array is simply a way to refer to a group of variables in one observation with a single name. Think of an array as being an alias for the names of SAS variables on which you need to perform the same task. The variables can be existing variables, new variables or temporary data elements as long as they are the same type. WebMay 13, 2024 · If you want to print each element of the array, concatenated three times, with spaces between the entries, then it's just: println ( (for (e <- a) yield e * 3).mkString (" ")) it gives: ok thenok thenok then wootwootwoot yeahyeahyeah (and this is the right order, because you wanted it sorted alphabetically, and o < w < y) tovolo microwave collapsible food cover