Re: [Rd] access an element with empty name

Le 14/05/2018 à 15:55, Kurt Hornik a écrit : Serguei Sokol writes: Hi, I came across a case where I cannot access a list element by its empty name. Minimal example can be constructed as     x=list("A", 1)     names(x)=c("a", "")     x[["a"]]     #[1]  "A"     x[[""]]     #NULL    

Re: [Rd] access an element with empty name

> Serguei Sokol writes: > Hi, > I came across a case where I cannot access a list element by its empty name. > Minimal example can be constructed as >     x=list("A", 1) >     names(x)=c("a", "") >     x[["a"]] >     #[1]  "A" >     x[[""]] >     #NULL >     x$`a` >     #[1]  "A" >  

[Rd] access an element with empty name

Hi, I came across a case where I cannot access a list element by its empty name. Minimal example can be constructed as     x=list("A", 1)     names(x)=c("a", "")     x[["a"]]     #[1]  "A"     x[[""]]     #NULL     x$`a`     #[1]  "A"     x$``     # Error: attempt to use zero-length variable