IntelliJ 14.1.5: Unable to import maven project
· intellij java

R: data.table - Comparing adjacent rows
· r-2 rstats

R: Querying a 20 million line CSV file - data.table vs data frame
· r-2

SparkR: Add new column to data frame by concatenating other columns
· sparkr

SparkR: Error in invokeJava(isStatic = TRUE, className, methodName, ...) : java.lang.ClassNotFoundException: Failed to load class for data source: csv.
· spark-2

Neo4j: Summarising neo4j-shell output
· neo4j

Python: Extracting Excel spreadsheet into CSV files
· python

Unix: Stripping first n bytes in a file / Byte Order Mark (BOM)
· unix

Unix: Redirecting stderr to stdout
· unix

Sed: Using environment variables
· sed