[R] Invert Likert-Scale Values

John Kane jrkrideau at yahoo.ca
Sat Aug 4 18:42:23 CEST 2007


Will ?recode in the car package do what you want?
 x <- 1:4
 recode(x, "1='4';2='3' ;3='2'; 4='1'")


--- Alexis Delevett <adelevet at yahoo.com> wrote:

> Hi!
> 
> I am using R to process some community survey data.
> Several item responses are recorded via a 7-point
> Likert-Scale. As I have coded the responses, 1
> represents high agreement, and 7 high disagreement.
> This of course impacts the coefficients in a linear
> regression (of example agreement to self-perception
> measures on housing satisfaction). For some
> purposes, in order to make the coefficients more
> accessible to the reader, I would like to invert the
> item values, i.e. to arrive at 1 for high
> disagreement, and 7 for high agreement (such that
> the linear regression would express something like
> "the higher the agreement on A, the greater the B).
> 
> Is there an already existing function for this, or
> do I use a custom replace loop in R?
> 
> Thank you, Alexis
> 
>        
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