search for: duplicate_labels

...jeroen/spss/longstring.sav"); str(x); The second problem is that the spss dataformat allows to specify 'duplicate labels', whereas this is not allowed for factors. read.spss does not deal with this and creates a bad factor x <- read.spss("http://www.stat.ucla.edu/~jeroen/spss/duplicate_labels.sav", use.value.labels=T); levels(x$opinion); which causes issues downstream. I am not sure if this is an issue in read.spss() or as.factor(), but I guess it might be wise to try to detect duplicate levels and assign them all with one and the same integer value when converting to a factor. T...