Luke Tierney questions

Luke Tierney answers

• S3methods in NAMESPACE not exported
• How to not fall into R's 'lazy evaluation trap'
• Error: vector memory exhausted (limit reached?)
• TryCatch with parLapply (Parallel package) in R
• remove a temporary environment variable and release memory in R
• `withCallingHandlers` inside `tryCatch` creates uncatchable error
• tryCatch does not catch an error if called though RScript