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vdep has asked 29 questions and find answers to 11 problems.

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vdep questions

How to use @FormParam if form elements are dynamically created
How to convert List[Double] to Columns?
Printing query results from Mongodb in Scala using mongo-scala-driver
convert RDD to Dataset in Java Spark
UDF's vs Spark sql vs column expressions performance optimization
How to add a column to Dataset without converting from a DataFrame and accessing it?
Replacing whitespace in all column names in spark Dataframe
parallelize() method while using SparkSession in Spark 2.0

vdep answers

How to handle categorical features for Decision Tree, Random Forest in spark ml?
Serve real-time predictions with trained Spark ML model [duplicate]
convert RDD to Dataset in Java Spark
how to calculate aggregations on a window when sensor readings are not sent if they haven't changed since last event?
Spark SQL change format of the number
Field "features" does not exist. SparkML
How to specify schema for CSV file without using Scala case class?
dplyr to paste columns together in remote DB
Hive query to find the count for the weeks in middle