How to put in labels in list for R?

Question

I am using R currently and I want to know how can I label the list objects when I declare a list. For example: return(list(xhat,alpha,beta)), and xhat, alpha and beta are themselves arrays. I want to give each an appropriate label.

Thank you.

Answer 1

For simple cases Michael's answer will work. Sometimes though you have a vector of names my_names which you would like to use to name/rename the output. There are at least three ways:

• use names<-:

  out <- list(xhat,alpha,beta)  
  names(out) <- my_names  
  out
  

• use setNames():

  setNames(out, my_names)
  

• use structure():

  structure(out, names=my_names)
  

Answer 2

All you need is list(x=xhat, a=alpha, b=beta)