[R] Recoding variables in R

[Lisa van der Burgh]

Hi all,


I have a very general question and I think for you maybe very easy, but I am not able to solve it.

I have a dataset and that dataset contains the variable Anxiolytics. This variable is coded as 0, 1, 2. The variable looks as follows:


> summary(DF$Anxiolytics)
   0        1     2       NA's
1102   0     20    440


You can see that the variable is coded as 0, 1, 2, but group 1 is 'empty'. So I want to remove this group, such that I get:

> summary(DF$Anxiolytics)
   0          2       NA's
1102     20      440

And then I want to recode the variable in a way that 2 becomes 1, such as:

> summary(DF$Anxiolytics)
   0          1       NA's
1102     20      440

Can you help me with the code for doing this?

Thank you in advance!
Best, Lisa


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