How to put in selectInput of R.shiny many levels with few line of code

Question

From the following code:

var<-c("a","a","b","b","c","d")

I want to have something like this:

c("a"="a", "b"="b", "c"="c", "d"="d")

then like this

c("Whole a"="="a", "Whole b"="b", "Whole c"="c", "Whole d=","d")

"Whole a" means that I want to write complete names of the levels (beginning with a capital letter and having space between two words).

Answer 1

From your question, I think that you might want to create a named vector. Something like the following:

setNames(unique(var), paste('Whole', unique(var)))

#Whole a Whole b Whole c Whole d 

#    "a"     "b"     "c"     "d" 

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