Thank you very much for your interest.
I make this:
x <- as.character(alumnos$AL_NUME_ID)
x <- x[-seq_len(length(x)/2)]
save(x, file="x.RData")
I exit form R, and then restart R and I make this:
load("x.RData")
y <- gsub("(^ +)|( +$)","",x)
It shows me:
Error en gsub("(^ +)|( +$)", "", x) :
input string 66644 is invalid in this locale
I delete that string (it is a string with a non usual character (Ñ))
So, I retype without that observation.
y <- gsub("(^ +)|( +$)","",x[-c(66644)])
I got this:
Error en gsub("(^ +)|( +$)", "", x[-c(66644)]) :
input string 160689 is invalid in this locale
I retype again with this invalid string this way (I use the
160690 position, because the lag of the x vector)
> y <- gsub("(^ +)|( +$)","",x[-c(66644,160690)])
Error: C produce desborde de pila en 'segfault'
And it fails.
I also repeat all the process with this conversion first.
x <- iconv(as.character(alumnos$AL_NUME_ID),"latin1","UTF-8")
x <- x[-seq_len(length(x)/2)]
save(x, file="x.RData")
And I exit, and restart R, and then I type
load("x.RData")
y <- gsub("(^ +)|( +$)","",x)
And it fails again without showing me the "invalid string" errors.
I then make this:
load("x.RData")
y <- gsub("(^ +)|( +$)","",x[1:160690])
and it works, then I type
y <- gsub("(^ +)|( +$)","",x[1:200000]) #(x length is 454035)
and it works...
But I start to make a manual binary search,
I found something that stills puzzle me.
y <- gsub("(^ +)|( +$)","",x[1:261570])
works, but sometimes fails (after I restart R),
it always fails with index greather than 262000.
I see that there are not something inusual arround 261570.
x[261560:261580]
[1] "21444777 " "1147585 " "255202522
"
[4] "25852100 " "24258550 " "A8D0251207
"
[7] "34681811 " "19121345 " "16921329
"
[10] "20442195 " "14506482 " "44332211
"
[13] "35049122 " "34326340 " "35182366
"
[16] "33288742 " "34958795 " "1017147202
"
[19] "3306985 " "33048501 " "33295073
"
I am sending you the x.Rdata file to see if you can
reproduce my problem.
This infomation may be useful:
sessionInfo()
R version 2.10.0 (2009-10-26)
x86_64-unknown-linux-gnu
locale:
[1] LC_CTYPE=es_CO.UTF-8 LC_NUMERIC=C
[3] LC_TIME=es_CO.UTF-8 LC_COLLATE=es_CO.UTF-8
[5] LC_MONETARY=C LC_MESSAGES=es_CO.UTF-8
[7] LC_PAPER=es_CO.UTF-8 LC_NAME=C
[9] LC_ADDRESS=C LC_TELEPHONE=C
[11] LC_MEASUREMENT=es_CO.UTF-8 LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices utils datasets methods base
R.Version()
$platform
[1] "x86_64-unknown-linux-gnu"
$arch
[1] "x86_64"
$os
[1] "linux-gnu"
$system
[1] "x86_64, linux-gnu"
$status
[1] ""
$major
[1] "2"
$minor
[1] "10.0"
$year
[1] "2009"
$month
[1] "10"
$day
[1] "26"
$`svn rev`
[1] "50208"
$language
[1] "R"
$version.string
[1] "R version 2.10.0 (2009-10-26)"
gcc --version and g++ --verision shows me:
gcc (Ubuntu 4.3.3-5ubuntu4) 4.3.3
Copyright (C) 2008 Free Software Foundation, Inc.
Esto es software libre; vea el código para las condiciones de copia. NO
hay
garantía; ni siquiera para MERCANTIBILIDAD o IDONEIDAD PARA UN PROPÓSITO
EN
PARTICULAR
When I compile R I use this option in configuration (nothing more)
./configure --enable-R-shlib
make
sudo make install
At the moment I have 22Gb of swap partition (keeping monitor tracking
the systems is not using it) and 4GB of RAM.
Again, thank you very much for your help.
Kenneth
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