[R] as.ffdf.data.frame now breaks if using pattern

Jens Oehlschlägel jens.oehlschlaegel at truecluster.com
Wed Apr 7 20:34:31 CEST 2010


Ramon,
for me this works

> setwd("d:/tmp")
> ffd <- as.ffdf(d, col_args=list(pattern = paste(getwd(), "/fftmp", sep = "")))
> filename(ffd)
$x
[1] "d:/tmp/fftmp35c34861.ff"

$y
[1] "d:/tmp/fftmp5be946bb.ff"

$z
[1] "d:/tmp/fftmp26c49ce.ff"

Jens


-----Ursprüngliche Nachricht-----
Von: Ramon Diaz-Uriarte <rdiaz02 at gmail.com>
Gesendet: Apr 7, 2010 7:01:23 PM
An: r-help at r-project.org
Betreff: as.ffdf.data.frame now breaks if using pattern

>Dear All,
>
>I am using package ff. In version 2.1-1 it was possible to use
>"pattern" with as.ffdf.data.frame:
>
>d <- data.frame(x=1:26, y=letters, z=Sys.time()+1:26)
>as.ffdf(d, pattern = paste(getwd(), "/fftmp", sep = ""))
>
>With the latest version, the last command crashes. I wonder if the new
>behavior is intentional or a bug. If intentional, what is the
>recommended way of using "pattern" now?
>
>Thanks,
>
>R.
>
>-- 
>Ramon Diaz-Uriarte
>Structural Biology and Biocomputing Programme
>Spanish National Cancer Centre (CNIO)
>http://ligarto.org/rdiaz
>Phone: +34-91-732-8000 ext. 3019
>Fax: +-34-91-224-6972



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