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Parameters Return Value Examples Getting the number of values in PySpark RDD

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chevron_leftPySpark RDD

Method coalesce Method collect Method collectAsMap Method count Method countByKey Method filter Method first Method getNumPartitions Method glom Method keys Method map Method partitionBy Method reduceByKey Method repartition Method zip Method zipWithIndex

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PySpark RDD | count method

schedule May 20, 2023

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Parameters Return Value Examples Getting the number of values in PySpark RDD

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PySpark RDD's count(~) method returns the number of values in the RDD as an integer.

Parameters

This method does not take in any parameters.

Return Value

An integer (int).

Examples

Consider the following PySpark RDD:


        
        
            
                
                
                    rdd = sc.parallelize(["A","B","A","B"])
rdd.collect()
                
            
            ['A', 'B', 'A', 'B']

Here, we are using the parallelize(~) method to create a PySpark RDD.

Getting the number of values in PySpark RDD

To get the number of elements in the RDD, use the count() method:


        
        
            
                
                
                    rdd.count()
                
            
            4

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Published by Isshin Inada

Edited by 0 others

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Official PySpark Documentation

https://spark.apache.org/docs/latest/api/python/reference/api/pyspark.RDD.count.html

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