sequence that counts up and back down
one way is the following: 5 - abs(-4:4) I hope it helps. Best, Dimitris
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. Thanks, Monte
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Dimitris Rizopoulos Assistant Professor Department of Biostatistics Erasmus Medical Center Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands Tel: +31/(0)10/7043478 Fax: +31/(0)10/7043014