honza at ifolk.cz
2007-Sep-05 09:25 UTC
[Rd] (PR#9896) read.spss converts string variables with
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I am sending two files attached. The file problem_file.sav was saved in
SPSS 10.0. It contains variables of various types, with and without
labeling etc., so that you can make experiments.
The file problem_file_read.RData was saved in R 2.5.1 (foreign library
version 0.8-20). It contains two data frames Schools and Schools2. The
former is result of
read.spss("problem_file.sav",to.data.frame=TRUE,use.value.labels=TRUE),
the latter differs in use.value.lables=FALSE only. As you can see, in the
first case read.spss has not read values of string labeled variables at
all.
I use WinXP.
Thank you for your work!
Jan Hucin
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Reference: <20070903104656.1D1566691D at slim.kubism.ku.dk>
There is nothing we can do to reproduce this without an example
'some.sav'
file exhibiting the problem. Can you please supply one?
On Mon, 3 Sep 2007, honza at ifolk.cz wrote:
> Full_Name: Jan Hucin
> Version: 2.5.1 (foreign 0.8-20)
> OS: WinXP
> Submission from: (NULL) (195.113.83.7)
>
>
> When reading an SPSS file:
>
> - containing some variable of type String
> - with value labels at that variable
> - and with determination which values of that variable are considered to be
> missing,
>
> I have always get <NA> where digits were in the original SPSS file.
>
> Example:
> Let's have in an SPSS file "some.sav" the variable A. The
type of the
variable> is String of length 1.
> Let's have a value labeling: 1 = Yes, 2 = No, 8 = Invalid, 9 = Missing.
> Let's determine that value 9 is considered to be missing.
> When this file is read by
abc=read.spss("some.sav",use.value.labels=TRUE),
we> get <NA> in abc$A on places where "1", "2" etc.
were. Surprisingly, we
get "N/A"> (not <NA>!) on the place where the string "N/A" is.
>
> If we specify use.value.labels=FALSE, then we get string values (such as
"1",> "2") but we lose value labels (Yes, No etc.).
>
> Let me add that if the variable in the original SPSS file was of type
Numeric> (not String), there would be no problem.
>
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel
>
--
Brian D. Ripley, ripley at 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
__________ Informace od NOD32 2505 (20070904) __________
Tato zprava byla proverena antivirovym systemem NOD32.
http://www.nod32.cz
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Prof Brian Ripley
2007-Sep-05 17:01 UTC
[Rd] (PR#9896) read.spss converts string variables with
Thank you. If anyone wants to work on a patch I've put the unencoded files from my direct copy at http://www.stats.ox.ac.uk/pub/bdr/problem_file.sav http://www.stats.ox.ac.uk/pub/bdr/problem_file_read.RData I am afraid I won't have a chance to take a look for at least a couple of weeks. On Wed, 5 Sep 2007, honza at ifolk.cz wrote:> ------=_20070905112441_38848 > Content-Type: text/plain; charset="iso-8859-2" > Content-Transfer-Encoding: 8bit > > I am sending two files attached. The file problem_file.sav was saved in > SPSS 10.0. It contains variables of various types, with and without > labeling etc., so that you can make experiments. > > The file problem_file_read.RData was saved in R 2.5.1 (foreign library > version 0.8-20). It contains two data frames Schools and Schools2. The > former is result of > read.spss("problem_file.sav",to.data.frame=TRUE,use.value.labels=TRUE), > the latter differs in use.value.lables=FALSE only. As you can see, in the > first case read.spss has not read values of string labeled variables at > all. > > I use WinXP. > > Thank you for your work! > > Jan Hucin > > ------------------------------------------------------------------- > Reference: <20070903104656.1D1566691D at slim.kubism.ku.dk> > > There is nothing we can do to reproduce this without an example 'some.sav' > file exhibiting the problem. Can you please supply one? > > On Mon, 3 Sep 2007, honza at ifolk.cz wrote: > >> Full_Name: Jan Hucin >> Version: 2.5.1 (foreign 0.8-20) >> OS: WinXP >> Submission from: (NULL) (195.113.83.7) >> >> >> When reading an SPSS file: >> >> - containing some variable of type String >> - with value labels at that variable >> - and with determination which values of that variable are considered to be >> missing, >> >> I have always get <NA> where digits were in the original SPSS file. >> >> Example: >> Let's have in an SPSS file "some.sav" the variable A. The type of the > variable >> is String of length 1. >> Let's have a value labeling: 1 = Yes, 2 = No, 8 = Invalid, 9 = Missing. >> Let's determine that value 9 is considered to be missing. >> When this file is read by > abc=read.spss("some.sav",use.value.labels=TRUE), we >> get <NA> in abc$A on places where "1", "2" etc. were. Surprisingly, we > get "N/A" >> (not <NA>!) on the place where the string "N/A" is. >> >> If we specify use.value.labels=FALSE, then we get string values (such as > "1", >> "2") but we lose value labels (Yes, No etc.). >> >> Let me add that if the variable in the original SPSS file was of type > Numeric >> (not String), there would be no problem. >> >> ______________________________________________ >> R-devel at r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel >> > >-- Brian D. Ripley, ripley at 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