[R] remove objects(1-20, 25-30) OR remove objects(...) except(...)??

[Tony Plate]

You can remove everything but specified objects using setdiff()

 > a <- 1
 > b <- 2
 > c <- 3
 > objects()
[1] "a" "b" "c"
 > rm(list=setdiff(objects(), "a"))
 > objects()
[1] "a"
 >

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