[R] Remove all factor levels from an R dataframe

[Jim Lemon]

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 <miaojpm using gmail.com> wrote:

> 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                    Ghana
> 7
> 8 2000                      US?
> > str(df1)
> 'data.frame': 5 obs. of  2 variables:
>  $ year   : Factor w/ 9 levels "2017","2016",..: 4 5 3 6 7
>  $ country: Factor w/ 9 levels "Euro Area\\newline Testing the MP
> performance of the Euro Area",..: 4 5 6 7 8
> > df1[order(-year), ]
> Error in order(-year) : object 'year' not found
>
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>
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