R help - Apr 2012 - Error: R for Windows GUI front-end has stopped working

Hi all.

I found one situation, on my OS - Windows 7,  where R stops working
with reported error R for Windows GUI front-end has stopped working.

Here is the example:

library(plyr)

DF <- data.frame(x=c(1:3, NA, NA), y=factor(sample(1:3,5,rep=T),levels=1:5))

DF[DF$x<3, ]

#this works properly
ddply(DF, .(y), nrow, .drop=FALSE)

#this causes the problem
ddply(DF[DF$x<3, ], .(y), nrow, .drop=FALSE)


Sometimes R deals with this without closing a program and with reported error:

Error in split_indices(seq_along(splitv), as.integer(splitv), attr(splitv,  :
  INTEGER() can only be applied to a 'integer', not a 'char'

but in the most of cases just stops working.

Does anyone know if this is happening also with other OS or only with Windows 7.

Here is my session info:
> sessionInfo()
R version 2.15.0 (2012-03-30)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] plyr_1.7.1

Andrija

Yes, that causes a segmentation fault on OSX too
------
> ddply(DF[DF$x<3, ], .(y), nrow, .drop=FALSE)
 *** caught segfault ***
address 0x0, cause 'memory not mapped'

Traceback:
 1: .Call("split_indices", index, group, as.integer(n))
 2: split_indices(seq_along(splitv), as.integer(splitv), attr(splitv,    
"n"))
 3: splitter_d(.data, .variables, drop = .drop)
 4: ddply(DF[DF$x < 3, ], .(y), nrow, .drop = FALSE)

Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace
------------
The problem is in a C function from the plyr package, so you need to take it up
the maintainer.

-pd


On Apr 14, 2012, at 11:28 , andrija djurovic wrote:
> Hi all.
> 
> I found one situation, on my OS - Windows 7,  where R stops working
> with reported error R for Windows GUI front-end has stopped working.
> 
> Here is the example:
> 
> library(plyr)
> 
> DF <- data.frame(x=c(1:3, NA, NA),
y=factor(sample(1:3,5,rep=T),levels=1:5))
> 
> DF[DF$x<3, ]
> 
> #this works properly
> ddply(DF, .(y), nrow, .drop=FALSE)
> 
> #this causes the problem
> ddply(DF[DF$x<3, ], .(y), nrow, .drop=FALSE)
> 
> 
> Sometimes R deals with this without closing a program and with reported
error:
> 
> Error in split_indices(seq_along(splitv), as.integer(splitv), attr(splitv, 
:
>  INTEGER() can only be applied to a 'integer', not a 'char'
> 
> but in the most of cases just stops working.
> 
> Does anyone know if this is happening also with other OS or only with
Windows 7.
> 
> Here is my session info:
> 
>> sessionInfo()
> R version 2.15.0 (2012-03-30)
> Platform: i386-pc-mingw32/i386 (32-bit)
> 
> locale:
> [1] LC_COLLATE=English_United States.1252
> [2] LC_CTYPE=English_United States.1252
> [3] LC_MONETARY=English_United States.1252
> [4] LC_NUMERIC=C
> [5] LC_TIME=English_United States.1252
> 
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
> 
> other attached packages:
> [1] plyr_1.7.1
> 
> Andrija
> 
> ______________________________________________
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-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
Phone: (+45)38153501
Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com