Hello, I am stuck with the following problem. Consider the vector: vec <- c(2,4,6,9,10) I now want to use R to manipulate the vector as follows: [1] 2, 4, 2, 6, 2, 9, 2, 10 In words, the first element of the vector should be placed in front of each following number. Which R commands do I need to achieve that? Cheers -- View this message in context: http://r.789695.n4.nabble.com/Vector-manipulation-tp4381586p4381586.html Sent from the R help mailing list archive at Nabble.com.
Vector manipulation
4 messages · syrvn, Dimitris Rizopoulos, Jorge I Velez
One way is: vec <- c(2,4,6,9,10) c(rbind(vec[1], vec[-1])) I hope it helps. Best, Dimitris
On 2/12/2012 6:54 PM, syrvn wrote:
Hello, I am stuck with the following problem. Consider the vector: vec<- c(2,4,6,9,10) I now want to use R to manipulate the vector as follows: [1] 2, 4, 2, 6, 2, 9, 2, 10 In words, the first element of the vector should be placed in front of each following number. Which R commands do I need to achieve that? Cheers -- View this message in context: http://r.789695.n4.nabble.com/Vector-manipulation-tp4381586p4381586.html Sent from the R help mailing list archive at Nabble.com.
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Dimitris Rizopoulos Assistant Professor Department of Biostatistics Erasmus University Medical Center Address: PO Box 2040, 3000 CA Rotterdam, the Netherlands Tel: +31/(0)10/7043478 Fax: +31/(0)10/7043014 Web: http://www.erasmusmc.nl/biostatistiek/
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Great Dimitris. It helps indeed! Thanks a lot! -- View this message in context: http://r.789695.n4.nabble.com/Vector-manipulation-tp4381586p4381614.html Sent from the R help mailing list archive at Nabble.com.