R help - Apr 2010 - 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

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


-----Urspr?ngliche 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

Ah, I see. Thanks. It works for me too.

Best,

R.

2010/4/7 Jens Oehlschl?gel <jens.oehlschlaegel at
truecluster.com>:
> 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
>
>
> -----Urspr?ngliche 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
>


-- 
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