bigO6377 questions

• KDB: apply dyadic function across two lists
• KDB selecting first row from each group
• Java: Array of first n integers
• R count function calls
• Pandas: Melting columns containing tuples
• KDB concatenating strings inside select/exec statements
• KDB; stripping characters from column of symbols
• R: bizarre behavior of set.seed()
• R: Avoid accidently overwriting variables
• Pandas: Selecting rows based on value counts of a particular column

bigO6377 answers