R help - May 2009 - What does it mean by skip=2 and skip=7?

Can anyone tell me what is skip=2, skip =7 and %in% mean here?


fromcsv=read.csv
('2_2005_top200_postdoc.csv',header=FALSE,skip=7,stringsAsFactors=FALSE)


fromreadxls = read.xls
('2_2005_top200_postdoc.xls',stringsAsFactors=FALSE,header=FALSE,skip=2)


fromreadxls = fromreadxls[fromreadxls$V7 %in%
c('Public','Private'),]



Thanks!

Tung86 <wyutung <at> gmail.com> writes:
> 
> Can anyone tell me what is skip=2, skip =7 and %in% mean here?
> 
> fromcsv=read.csv
>
('2_2005_top200_postdoc.csv',header=FALSE,skip=7,stringsAsFactors=FALSE)
Did you check the docs?

skip 	integer: the number of lines of the data file to skip before beginning to
read data.
 
> fromreadxls = fromreadxls[fromreadxls$V7 %in%
c('Public','Private'),]
See the documentation of "match"

Dieter

> Can anyone tell me what is skip=2, skip =7
>From ?read.csv:
"skip: integer: the number of lines of the data file to skip before
          beginning to read data."
> and %in% mean here?
%in% matches values; see ?'%in%', and example('%in%')

Regards,
Richie.

Mathematical Sciences Unit
HSL


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