Would it be worthwhile to update the read.spss implementation using the more recent discoveries from the PSPP group? I don't mean to copy their code; but to use the ideas in their code. Is anyone working on this? I wouldn't want the effort to be duplicated.
On Thu, 2011-10-13 at 16:22 +0200, Uwe Ligges wrote: > > On 11.10.2011 12:07, Smart Guy wrote: > > 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 > > > > An R data.frame cannot represent different kinds of missing values, > since R just has "NA". Therefore, there are two way to import data: > > to.data.frame=FALSE will read all the information, but into a format > you will likely have to postprocess to make it conveniently usable. > > to.data.frame=TRUE will import into a data.frame, but that cannot > represent all the nuances known from the SPSS representation. > > Uwe Ligges > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
