[R] Recoding variables in R

[Lisa van der Burgh]

Thank you all for your help, it worked!

Op 23 mei 2018 om 19:27 heeft marta azores <martazores using gmail.com<mailto:martazores using gmail.com>> het volgende geschreven:

Try that code

NewDF<-DF[!DF$Anxiolytics==1,]

2018-05-23 10:14 GMT+00:00 Lisa van der Burgh <lisavdburgh using hotmail.com<mailto:lisavdburgh using hotmail.com>>:
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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