[R] how to skip last lines while reading the data in R

[Gabor Grothendieck]

or even:

head(read.table("xy.dat", header = TRUE), -2)


On Jan 28, 2008 10:52 AM, Gabor Grothendieck <ggrothendieck at gmail.com> wrote:
> If you don't mind reading it in twice its just:
>
> DF <- read.table("xy.dat", header = TRUE, nrow =
> length(readLines("xy.dat")) - 3)
> tail(DF)
> # or
> DF <- read.table("xy.dat", header = TRUE, nrow =
> length(count.fields("xy.dat")) - 3)
> tail(DF)
> # or
> DF <- read.table("xy.dat", header = TRUE, nrow =
> nrow(read.table("xy.dat", header = TRUE)) - 2)
> tail(DF)
>
>
> On Jan 28, 2008 5:10 AM, mrafi <confessin at gmail.com> wrote:
> >
> > hey all
> > greetings
> >
> > hey all am an engineering student...and am trying to learn R
> > i am trying to automate reading a specific type of file...and perform
> > certain functions...but i want to omit lines in the end of the file..
> > there is an option for skiping the lines before begining...but how can i ask
> > R to read till n-2th or n-3th row...or skip the last 2 or 3 rows while
> > reading...
> > i have files of diff. number of lines...!!
> > i wd be grateful to u if u can help me out of this..!!!
> > thanks in advance
> > Rafi...!!
> >
> > --
> > View this message in context: http://www.nabble.com/how-to-skip-last-lines-while-reading-the-data-in-R-tp15132030p15132030.html
> > Sent from the R help mailing list archive at Nabble.com.
> >
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