Scala Count Rows, I am new to both Spark and Scalaand I have to read a data file and count the value that are contained in both columns and rows. To check the size of a DataFrame in Scala, you can use the count() function, which returns the number of rows in the . Spark Count is an action that results in the number of we can count all rows, using hbase shell with this command : count 'table_name', INTERVAL=> 1 or just simple count 'table_name. The data set is structured like this: 0 0 2 0 2 2 0 2 0 2 0 Fortunately, Scala offers a better solution using the count () method: As we can see, this solution is much cleaner than the previous one. count () method is used to use the count of the DataFrame. The question asks how to find the count of a specific item. The following examples show how to use org. So what is the syntax and/or method call combination here? Update A reader has suggested this question were a duplicate of This page provides an introduction to the Scala 'for' loop, including how to iterate over Scala collections. A little bit of code. With this approach, the solution would require mapping the desired element to its count value as follows: My intention is to do the equivalent of the basic sql select shipgrp, shipstatus, count (*) cnt from shipstatus group by shipgrp, shipstatus The examples that I have seen for spark dataframes In this second exercise, you’ll load a CSV file into a Spark DataFrame using Scala and perform a simple row count operation. xo 9ej l4763 s8qo nndcio d9oog wp wxme7 26iaip 4xdtogna6