[R] need help on read.spss
Eik Vettorazzi
E.Vettorazzi at uke.de
Tue Oct 11 13:09:23 CEST 2011
Hi,
if you specify to.data.frame=T, then "use.missings" is implictly set to
T as well, which causes different results for (user-defined) missing values.
cheers.
Am 11.10.2011 12:07, schrieb Smart Guy:
> Hi,
> I have one doubt about one of the parameter of 'read.spss()' from
> 'foreign' package.
> Here is the syntax :-
>
> read.spss ( file,
> use.value.labels = TRUE,
> to.data.frame = FALSE,
> max.value.labels = Inf,
> trim.factor.names = FALSE,
> trim_values = TRUE,
> reencode = NA,
> use.missings = to.data.frame )
>
>
> In above syntax when I pass *'to.data.frame= FALSE*' it gives me missing
> values from SPSS file (that I try to read using read.spss() ). But when I
> pass '*to.data.frame = TRUE*' then its not giving me missing values. And
> need to get missing values.
>
> According to read.spss() documentation
>
> *to.data.frame : return a data frame?*
>
> I am curious to know, if we pass *'to.data.frame = TRUE*' , is it going to
> cause some issue or effect something? I didn't understand the read.spss()
> documentation correctly.
> Please explain.
>
> Thanks in Advance
>
--
Eik Vettorazzi
Department of Medical Biometry and Epidemiology
University Medical Center Hamburg-Eppendorf
Martinistr. 52
20246 Hamburg
T ++49/40/7410-58243
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