Raphael Roth

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Raphael Roth has asked 87 questions and find answers to 116 problems.

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Raphael Roth questions

Implicit conversion integer <--> logical in Fortran if statement
Invoke sed only on files which contain a certain string - problems with whitespaces in filenames
Unable to write method in Scala working both for Double and Float
Spark custom aggregation : collect_list+UDF vs UDAF
Cache not preventing multiple filescans?
What is the goal of the java.nio.file.CopyOption interface?
How to get the name of a Spark Column as String?
Plotly plot single trace with 2 yaxis
JNA with Fortran assumed size array
import implicit conversions without instance of SparkSession

Raphael Roth answers

Spark udf with non column parameters
Conditional application of `filter`/`where` to a Spark `Dataset`/`Dataframe`
Get examples for rows that are removed by a filter from a spark dataframe
Calculate value based on value from same column of the previous row in spark
How do I use countDistinct in Spark/Scala?
Spark Get only columns that have one or more null values
How to add dependency to maven project? (How to find out GroupID / ArtifactID from external jar file) [duplicate]
spark dataframe save as partitioned table very slowly
Create boolean flag based on column value containing element of a List [duplicate]
writing 2 data frames in parallel in scala