PySpark: multiple conditions in when clause - Stack Overflow
Jun 8, 2016 · when in pyspark multiple conditions can be built using &(for and) and | (for or). Note:In pyspark t is important to enclose every expressions within parenthesis () that combine …
Manually create a pyspark dataframe - Stack Overflow
Sep 16, 2019 · I am trying to manually create a pyspark dataframe given certain data: row_in = [(1566429545575348), (40.353977), (-111.701859)] rdd = sc.parallelize(row_in) schema = …
pyspark - How to use AND or OR condition in when in Spark
pyspark.sql.functions.when takes a Boolean Column as its condition. When using PySpark, it's often useful to think "Column Expression" when you read "Column". Logical operations on …
PySpark: How to fillna values in dataframe for specific columns?
Jul 12, 2017 · PySpark how to create a column based on rows values. 0. Fill column value based on join in Pyspark ...
Show distinct column values in pyspark dataframe
With pyspark dataframe, how do you do the equivalent of Pandas df['col'].unique(). I want to list out all the unique values in a pyspark dataframe column. Not the SQL type way …
pyspark : NameError: name 'spark' is not defined
from pyspark.sql import SparkSession spark = SparkSession.builder \ .appName('My PySpark App') \ .getOrCreate() Alternatively, you can use the pyspark shell where spark (the Spark …
Pyspark: display a spark data frame in a table format
spark.conf.set("spark.sql.execution.arrow.pyspark.enabled", "true") For more details you can refer to my blog post Speeding up the conversion between PySpark and Pandas DataFrames Share
pyspark dataframe filter or include based on list
Nov 4, 2016 · I am trying to filter a dataframe in pyspark using a list. I want to either filter based on the list or include only those records with a value in the list. My code below does not work: # …
spark dataframe drop duplicates and keep first - Stack Overflow
Aug 1, 2016 · Question: in pandas when dropping duplicates you can specify which columns to keep. Is there an equivalent in Spark Dataframes? Pandas: df.sort_values('actual_datetime', …
PySpark - String matching to create new column - Stack Overflow
PySpark rename multiple columns based on regex pattern list Hot Network Questions "Genius, not man, is the measure of all things" : Genius, non homo, mensura?