[R] labels to values

[John Kane]

There probably is an easier way but you put the
value.labels and corresponding numbers into a
data.frame, stick d[,'Y6] into  a data frame and merge
the two. Then just add or replace d[,Y6] in the
original data.frame.
Example
# Set up basic data
aa <- 1:15           
bb <- letters[1:15]
# Apply attribute to aa
attr(aa, "value.labels")  <- bb ; aa
# mock dataset 
cc <- data.frame(hhh= sample(aa, 25, replace=TRUE));
cc

# attrubutes and corresponding numberic values
x <- data.frame(jjj=aa, labs=attr(aa,'value.labels'))
;x

# merge 
merge(cc, x, by.x="hhh", by.y="jjj" )

--- Matthias Wendel <office at matthiaswendel.de> wrote:

> I couldn't find out how the following to solve:
> There is a column in a data.frame:
> 
> > d[, 'Y6']
>   [1]  6  3  8 11  8  9  6  8  3  5 10 15 NA  9  8 
> 3  8 16  6  6 NA 10  5  2  7  7  6 16  7 15  7 10 12
>  8  7 12 12 16  7  6  8  8
> 15  6  [45] NA  8 99  7 12  8  9 16  7 16  8  7  7 
> 1 15 12  8  7 10  7  8  7  8  9  8  6  6  8  6 16 11
>  5 11 11  1 11  3  7  7 10
> 10 10  6 11  [89] 16 NA  1  3  2 10 99 10  3  3  9 
> 7 16 99 16  1 10  2 13 13 13 13 13 13 13 13 13 13 13
> 13 13 13 13 13 13 NA 10 16
> 16 NA  6 10  5 11 [133] 11  1  1  1  1 16  1 16  1 
> 1  1  1  6  6  6 16  8 16 16 16 16  5  6 10 99 11 11
> 10  6  6  1  1  6  1 11 11
> 16  9 11 16  6  8  8 16 [177] 16  8  6 16 16 12 12
> 12 12 12 12 12 16  9 16 15 12 12 15 10 16 15  4  1 
> 2 14  4  4  2  5 NA  1  5  5
> 7  9  5 12 12 NA 16 12 12 12 [221] 12 12 12 12 12 12
> 99 NA 12 12 NA  1 16  1  7 11  5  6  7  1 13  6  8
> 16  2  1  5 16 16  9  8  8
> 8  7 16  8  8  2  8  5  4  6 14  5 [265] 14  8  8 14
>  4  4  8 14  8 14  6  2  3 14  3 16  5 15 15 15 15
> 15 15 15 15 15 15 15 13 13
> 13 13 13 13 13 13 13 13 13 13 13 15  6 NA [309] 12 
> 3  9  9 NA 10 16
> attr(,"value.labels")
>                           Verwaltung
> Servicegesellschaft Waldfriede (SKW)           
> Kurzzeitpflege Waldfriede 
>                                   16                
>                   15                                
>   14 
>                        Sozialstation                
>  Krankenpflegeschule              Med. Technischer
> Dienst 
>                                   13                
>                   12                                
>   11 
>                            Pflege OP                
>      Funktionsdienst                   Pflege
> Gynäkologie 
>                                   10                
>                    9                                
>    8 
>                     Pflege Chirurgie                
>        Pflege Innere            Ärzte Anästhesie,
> Röntgen 
>                                    7                
>                    6                                
>    5 
>                    Ärzte Gynäkologie                
>      Ärzte Chirurgie                         Ärzte
> Innere 
>                                    4                
>                    3                                
>    2 
>         Patientenberatung/-betreuung 
>                                    1 
> 
> I'd like to have the column with the value.labels as
> values. How do I do that?
> Thanks,
> Matthias
> 
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