See the posting guide: your version of 'foreign' is not current:
http://cran.r-project.org/web/packages/foreign/index.html .
Please update your packages and try again. (This looks very like a bug
in recently contributed code that has already been fixed.)
On 07/11/2013 13:40, Anthony Damico wrote:
this file
http://www.electionstudies.org/studypages/data/anes_mergedfile_1992to1997/anes_mergedfile_1992to1997_dta.zip
can be downloaded after free registration on this page
http://electionstudies.org/studypages/download/registration_form.php
imports properly in windows R x64 3.0.1 but causes R x64 3.0.2 to crash
the crash occurs at the line
rval <- .External(do_readStata, file)
at the bottom of this e-mail, i have included code that will reproduce the
problem exactly in 3.0.2 but not 3.0.1
and if i don't load the memisc and Hmisc packages, i get an error instead
of a crash..
x <- read.dta( fp , convert.factors = FALSE )
Error in read.dta(fp, convert.factors = FALSE) :
Value of SET_STRING_ELT() must be a 'CHARSXP' not a 'NULL'
..but if i load both (as shown in the script below), R just dies.
=================
sessionInfo for 3.0.1 (the version that works)
sessionInfo()
R version 3.0.1 (2013-05-16)
Platform: x86_64-w64-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United
States.1252 LC_MONETARY=English_United States.1252
LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] grid splines stats graphics grDevices utils datasets
methods base
other attached packages:
[1] memisc_0.96-6 MASS_7.3-26 lattice_0.20-15 Hmisc_3.12-2
Formula_1.1-1 survival_2.37-4 httr_0.2 stringr_0.6.2
foreign_0.8-53
loaded via a namespace (and not attached):
[1] cluster_1.14.4 digest_0.6.3 RCurl_1.95-4.1 rpart_4.1-1
tools_3.0.1
=================
sessionInfo in 3.0.2 right before the crash --
sessionInfo()
R version 3.0.2 (2013-09-25)
Platform: x86_64-w64-mingw32/x64 (64-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] grid splines stats graphics grDevices utils datasets
[8] methods base
other attached packages:
[1] memisc_0.96-6 MASS_7.3-29 lattice_0.20-23 Hmisc_3.12-2
[5] Formula_1.1-1 survival_2.37-4 httr_0.2 stringr_0.6.2
[9] foreign_0.8-55
loaded via a namespace (and not attached):
[1] cluster_1.14.4 digest_0.6.3 RCurl_1.95-4.1 rpart_4.1-3
tools_3.0.2
=================
# code that works in 3.0.1 and crashes in 3.0.2 --
setwd( "C:/my directory/anes")
your.username <- "em...@address.com"
your.password <- "your.password"
require(foreign) # load foreign package (converts data files into R)
require(stringr) # load stringr package (manipulates character strings
easily)
require(httr) # load httr package (downloads files from the web,
with SSL and cookies)
require(Hmisc) # load Hmisc package (loads spss.get function)
require(memisc) # load memisc package (loads spss portable table
import functions)
# construct a list containing the pre-specified login information
values <-
list(
"email" = your.username ,
"pass" = your.password
)
# contact the anes website to log in
POST( "http://www.electionstudies.org/studypages/download/login-process.php";
, body = values )
# download the `all_datasets` page to figure out what needs to be downloaded
z <- GET( "
http://www.electionstudies.org/studypages/download/datacenter_all_datasets.php";
)
# create a temporary file and a temporary directory
tf <- tempfile() ; td <- tempdir()
# download the damn file
z <- GET( "
http://www.electionstudies.org/studypages/data/anes_mergedfile_1992to1997/anes_mergedfile_1992to1997_dta.zip";
)
# save the result to a temporary file on the local disk
writeBin( z$content , tf )
# unzip that temporary file to an equally-temporary directory
z <- unzip( tf , exdir = td )
# find which one it is from among everything zipped up together..
fp <- z[ grep( 'dta' , z ) ]
# ..import that puppy
x <- read.dta( fp , convert.factors = FALSE )
# crash.
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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--
Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
______________________________________________
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
