[R] how to keep functions while remove all other commands

Henrik Bengtsson hb at maths.lth.se
Sun Jan 25 10:21:21 CET 2004

Hi, it's not clear what you asking for, but if you want to remove all
object except functions here's the shortest one-line solution that I
can think of

 rm(list=ls()[!sapply(ls(), FUN=exists, mode="function")])

Henrik Bengtsson
Lund University, Sweden

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of Yong Wang
> Sent: den 25 januari 2004 04:47
> To: r-help-request at stat.math.ethz.ch
> Cc: r-help at stat.math.ethz.ch
> Subject: [R] how to keep functions while remove all other commands
> Dear all:
> a quick question:
> I am used to apply  rm(list=()) regularly to remove all old codes in

> preventing them creeping in current analysis.however, with that 
> application, functions I wrote are also removed. please let 
> me know how to keep the thing you want while remove those you don't.
> thank you
> best 
> yong
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