Store aggregate value of a PySpark dataframe column into a variable

Question

I am working with PySpark dataframes here. \"test1\" is my PySpark dataframe and event_date is a TimestampType. So when I try to get a distinct count of event_date, the resu

Answer 1

trainDF.fillna({'Age':trainDF.select('Age').agg(avg('Age')).collect()[0][0]})