[R] loop

[Ravi Varadhan]

Try this:

m <- seq(-1,1,0.1)
  x1 <- vector(length=length(m))
  x2 <- vector(length=length(m))
  for(i in m){
  x1[i] <- i
  x2[i] <- i^2
  }
  dat <- data.frame(x1,x2)

Ravi.

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Ravi Varadhan, Ph.D.

Assistant Professor, The Center on Aging and Health

Division of Geriatric Medicine and Gerontology 

Johns Hopkins University

Ph: (410) 502-2619

Fax: (410) 614-9625

Email: rvaradhan at jhmi.edu

Webpage:  http://www.jhsph.edu/agingandhealth/People/Faculty/Varadhan.html

 

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-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On
Behalf Of Neuer Arkadasch
Sent: Wednesday, March 05, 2008 10:00 AM
To: r-help at stat.math.ethz.ch
Subject: [R] loop

Hello all,
   
  I am trying to use 
   
  m <- seq(-1,1,0.1)
  x1 <- vector()
  x2 <- vector()
  for(i in m){
  x1[i] <- i
  x2[i] <- i^2
  }
  dat <- data.frame(x1,x2)
  But, I have  false result
  >dat
    x1 x2
  1 1  1
   
  could some tell me how it is possible to do this?
   
  Thank you!
   
   

       
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