[R] Reading spss files into R - warnings

[Steve Taylor]

suppressWarnings() will get rid of them for you.

Note that in R a factor cannot have duplicate levels.  Compare the results with use.value.labels turned on or off, to see which you prefer.

I also get the "unknown type" warnings, but I ignore them as my data seems to arrive into R intact. 

Hope that helps.

cheers,
    Steve

-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Marion Wenty
Sent: Friday, 17 February 2012 1:00a
To: r-help at r-project.org
Subject: [R] Reading spss files into R - warnings

Hello people,

I have got a question concerning reading spss files into R:

I used the package foreign and the following command:

read.spss("C:/Eigene Dateien/myspssfile.sav",to.data.frame=T)

I have read two different files into R (several times) and always got the following two warning messages:

first file:

Warnmeldungen:1: In `levels<-`(`*tmp*`, value = if (nl == nL)
as.character(labels) else paste(labels,  :
  doppelt auftretende Faktorstufen werden nicht mehr zulässig sein2:
In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste(labels,  :
  doppelt auftretende Faktorstufen werden nicht mehr zulässig sein3:
In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste(labels,  :
  doppelt auftretende Faktorstufen werden nicht mehr zulässig sein4:
In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste(labels,  :
  doppelt auftretende Faktorstufen werden nicht mehr zulässig sein5:
In `levels<-`(`*tmp*`, value = if (nl == nL) as.character(labels) else paste(labels,  :
  doppelt auftretende Faktorstufen werden nicht mehr zulässig sein


second file:


Warnmeldungen:

1:

 Unerkannter Datensatztyp 7, Untertyp 14 in Systemdatei vorgefunden2:

Unerkannter Datensatztyp 7, Untertyp 18 in Systemdatei vorgefunden



I couldn't find out how to get rid of these.


Does anyone know how to do this?


Thank you very much in advance,


Marion

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