On Feb 27, 2010, at 11:24 AM, Balzer Susanne wrote:
Dear all,
I am trying to read in big amounts of data with scan. It's only one
variable, numeric values, separated by tabs,.. and it's many of
them. So I was thinking that I could use the skip option and read in
100000 values at a time - but skip doesn't work, probably because I
don't have line breaks in the txt file. So any value specified for
skip makes the scan function jump to the end of the file.
?scan
Without a working example it is hard to be sure, but it appears from a
rapid look at the help page that nmax is the argument you want.
> scan(textConnection('1 2 3 4 5 6 7'), nmax=4)
Read 4 items
[1] 1 2 3 4
(Ignores line-feeds)
> scan(textConnection('1 2 \n 3 4 5 6 7'), nmax=4)
Read 4 items
[1] 1 2 3 4
--
David.
Does anyone have a good idea? I would be extremely grateful.
Kind regards,
Susanne Balzer
****************************
Susanne Balzer
PhD Student
Institute of Marine Research
N-5073 Bergen, Norway
Phone: +47 55 23 69 45
susanne.bal...@imr.no
www.imr.no
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
