[R] Antwort: RE: Variable labels and value labels

[G.Maubach at weinwolf.de]

Hi Petr,

I am looking for a general procedure that I can use with any package of R.

As to my current experience it probably will happen that I need a 
procedure from another package than hmisc or memisc and the my solution 
shall work even than so that I do need to find another way to do it.

Kind regards

Georg



Von:    PIKAL Petr <petr.pikal at precheza.cz>
An:     "G.Maubach at weinwolf.de" <G.Maubach at weinwolf.de>, 
"r-help at r-project.org" <r-help at r-project.org>, 
Datum:  31.05.2016 14:56
Betreff:        RE: [R] Variable labels and value labels



Hi

see in line

> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of
> G.Maubach at weinwolf.de
> Sent: Tuesday, May 31, 2016 2:01 PM
> To: r-help at r-project.org
> Subject: [R] Variable labels and value labels
>
> Hi All,
>
> I am using R for social sciences. In this field I am used to use short 
variable
> names like "q1" for question 1, "q2" for question 2 and so on and label 
the
> variables like q1 : "Please tell us your age" or q2 : "Could you state 
us your
> household income?" or something similar indicating which question is 
stored
> in the variable.
>
> Similar I am used to label values like 1: "Less than 18 years", 2 : "18 
to
> 30 years", 3 : "31 to 60 years" and 4 : "61 years and more".

Seems to me that it is work for factors

nnn <- sample(1:4, 20, replace=TRUE)
q1 <-factor(nnn, labels=c("Less than 18 years", "18 to 30 years", "31 to 
60 years","61 years and more"))

You can store such variables in data.frame with names "q1" to "qwhatever" 
and possibly "Subject"

And you can store annotation of questions in another data frame with 2 
columns e.g. "Question" and "Description"

Basically it is an approach similar to database and in R you can merge 
those two data.frames by ?merge.
>
> I know that the packages Hmisc and memisc have a functionality for this 
but
> these labeling functions are limited to the packages they were defined 
for.

It seems to me strange. What prevents you to use functions from Hmisc?

Regards
Petr

> Using the question tests as variable names is possible but very 
inconvenient.
>
> I there another way for labeling variables and values in R?
>
> Kind regards
>
> Georg Maubach
>
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