Open SAS ↗Open R ↗

← SASnRRemove objects from the environment (rm / remove)

Introduction

When experimenting, we often want to remove temporary objects from the environment to avoid name clashes and stale values
ls() (or objects()) lists what is currently in the environment
rm(x) removes a single object; rm(a, b) removes multiple
For scripts, prefer rm(list = ...) where the list is built programmatically
Common patterns

Keep only a few: rm(list = setdiff(ls(), c("adsl","adlb")))
Remove by pattern: rm(list = ls(pattern = "^tmp_"))
Clear all (use with care): rm(list = ls())

Think of this like cleaning the SAS WORK library between steps—keeps our workspace predictable while we iterate