Re: [R] Remove all factor levels from an R dataframe

Hi John, I was thinking that you created df1 in a way that set the 'year' column as a factor when this is not what you wanted to do. The data.frame() function takes an argument stringsAsFactors which controls this behavior. For R versions 3.6.3 or earlier, the default setting is stringsAsFactors=TR

Re: [R] Remove all factor levels from an R dataframe

Sure John, df1<-df1[order(as.character(df1$year),decreasing=TRUE),] Jim On Tue, Nov 10, 2020 at 8:05 PM John wrote: > Thanks Jim. Can we do descending order? > > Jim Lemon 於 2020年11月10日 週二 下午4:56寫道： > >> Hi John, >> >> df1<-sapply(df1,as.character) >> >> Should do what you ask. The error mess

Re: [R] Remove all factor levels from an R dataframe

Thanks Jim. Can we do descending order? Jim Lemon 於 2020年11月10日 週二 下午4:56寫道： > Hi John, > > df1<-sapply(df1,as.character) > > Should do what you ask. The error message probably means that you should > do this: > > df1<-df1[order(as.character(df1$year)),] > > as "year" is the name of the first co

Re: [R] Remove all factor levels from an R dataframe

Hi John, df1<-sapply(df1,as.character) Should do what you ask. The error message probably means that you should do this: df1<-df1[order(as.character(df1$year)),] as "year" is the name of the first column in df1, not a separate object. Jim On Tue, Nov 10, 2020 at 6:57 PM John wrote: > Hi, >

[R] Remove all factor levels from an R dataframe

Hi, I would like to sort the following simple dataframe by "year" (characters), but the factor structure prevents me from doing so. How can I remove the factor structure? Thanks! > df1 year country 4 2007 Asia; survey 5 2010 8 countries in E/SE Asia 6 2015