[R] sequence that counts up and back down
d.rizopoulos at erasmusmc.nl
Fri Feb 6 08:52:29 CET 2009
one way is the following:
5 - abs(-4:4)
I hope it helps.
Monte Milanuk wrote:
> I hit a minor sticking point working one of the problems in 'Using R'
> (Verzani). I'm having difficulty with generating a sequence that goes
> 1, 2, 3, 4, 5, 4, 3, 2, 1. I can make one that counts up, I can make
> one that counts down, etc. but one that counts up then down like this
> (short of just using c() ) is stumping me.
> Any help (on or off list) would be appreciated.
> R-help at r-project.org mailing list
> PLEASE do read the posting guide
> and provide commented, minimal, self-contained, reproducible code.
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Erasmus Medical Center
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