[R] Reading Strings in R

Greg Snow Greg.Snow at imail.org
Mon Oct 4 20:36:07 CEST 2010


Use scan whith what='' or read.table with colClasses='character'.

-- 
Gregory (Greg) L. Snow Ph.D.
Statistical Data Center
Intermountain Healthcare
greg.snow at imail.org
801.408.8111


> -----Original Message-----
> From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
> project.org] On Behalf Of Lorenzo Isella
> Sent: Monday, October 04, 2010 5:05 AM
> To: r-help
> Subject: [R] Reading Strings in R
> 
> Dear All,
> I know this must be a one-liner, but I am experiencing problems.
> I need to read lists of long integers stored on a text files, i.e.
> which
> reads like
> 
> "7359700484475972"
> "7359700484475972"
> "0"
> "7359700484475972"
> "0"
> "0"
> "0"
> "97189954101318722"
> "0"
> "0"
> "7811896690636354"
> "7359700490636354"
> "0"
> "0"
> "0"
> "7811896684475972"
> "7811896684475972"
> "7811896690636354"
> "8447597298304052"
> "7359700484475972"
> "0"
> "7359700498304052"
> "7359700498304052"
> "7359700498304052"
> "0"
> "7359700498304052"
> "7359700484475972"
> "7359700484475972"
> 
> Now, for me every integer is just a symbol, i.e. the ID of some object
> and I simply need to find out how many times and where it occurs in
> this
> file.
> Bottom line: I would like to read this file directly as a string to
> ensure I will not have any trouble of integer overflow or rounding
> error.
> I tried readLines, but I cannot get rid of \n.
> Any help is appreciated.
> Cheers
> 
> Lorenzo
> 
> ______________________________________________
> R-help at 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.



More information about the R-help mailing list