ags29 questions

ags29 answers

• Is there a elegant way to only keep top[2~3] value for each row in a matrix?
• Spark DataFrame operators (nunique, multiplication)
• PySpark replace value in several column at once
• Comparing two arrays and getting the difference in PySpark
• Convert Pyspark Dataframe column from array to new columns
• PySpark - Pass list as parameter to UDF
• rename columns in dataframe pyspark adding a string