Sorting

Making and creating rankings is one of mankind's favorite affairs. These rankings can be useful $($best universities in the world$),$ entertaining $($most influential movie stars$)$ or pointless $($best $007$ look$-$a$-$like$).$

In data analysis you can sort your data according to a certain variable in the dataset. In R$,$ this is done with the help of the function order$().$

order$()$ is a function that gives you the ranked position of each element when it is applied on a variable, such as a vector for example:

a $<-$ c$(100,10,1000)$

order$($a$)$

$[1]213$

$10,$ which is the second element in a$,$ is the smallest element, so $2$ comes first in the output of order$($a$).100,$ which is the first element in a is the second smallest element, so $1$ comes second in the output of order$($a$).$

This means we can use the output of order$($a$)$ to reshuffle a:

a$[$order$($a$)]$

$[1]101001000$

Instructions

$100$ XP

Experiment with the order$()$ function in the console. Submit the answer when you are ready to continue.