[R] Problem while reading Data from a data frame

[ONKELINX, Thierry]

You don't need a loop nor a growing object.

data(mtcars)
mtcars
mtcars[seq(1, nrow(mtcars), by = 2), ]

ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium
+ 32 2 525 02 51
+ 32 54 43 61 85
Thierry.Onkelinx op inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey


-----Oorspronkelijk bericht-----
Van: r-help-bounces op r-project.org [mailto:r-help-bounces op r-project.org] Namens Baro
Verzonden: dinsdag 5 november 2013 15:42
Aan: R help
Onderwerp: [R] Problem while reading Data from a data frame

Hi experts,

I want to read only the half of my data frame, which I read it from clip board, and save it in a list. I wrote this code but it doesnt work:

ck<-read.table("clipboard")
datalist<-list()
d<-dim(ck)[1]
i<-1

repeat
{
  datalist<-c(datalist,ck[i,])
  i<-i+2
  if(i>d)
  {break}
}
datalist

        [[alternative HTML version deleted]]

______________________________________________
R-help op r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
* * * * * * * * * * * * * D I S C L A I M E R * * * * * * * * * * * * *
Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver weer en binden het INBO onder geen enkel beding, zolang dit bericht niet bevestigd is door een geldig ondertekend document.
The views expressed in this message and any annex are purely those of the writer and may not be regarded as stating an official position of INBO, as long as the message is not confirmed by a duly signed document.