Dismantling a list in R, Removing Duplicate Elements

Overview

Dealing with all sorts of unrefined data, the list data type in R is especially useful in organizing data. However, on the flip side, accessing data can be a bit cumbersome and disadvantageous in locating the desired content.

In this case, breaking down the list data type through the unlist() function makes this manipulation much more convenient.

The unique() function removes all duplicate elements in the received array, leaving only one of each. It can perform a similar role to when you would use the set data type in Python.

Code

Here is an example code.

x<-list(A=c(3,2,5,3),B=c(2.2,5,3,2.0)); x
unlist(x)
unique(unlist(x))