[R] Is there any concise way to write a one-to-one mapping?

[jpm miao]

My code is:



if(type=="none")

  type2<-"nc"

if(type=="drift")

  type2<-"c"

if(type=="trend")

  type2<-"ct"


I am wondering if there's a concise way to write a mapping from type to
type2, especially when the number of categories is high. Thanks!

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