On the basis of the vectors Label and ID create a character vector formatted with labels constructed in the same as with newLabel in the previous exercise, but this time you have to ensure that xxx always contains three digits. So for a sample with ID nr. 23 and label “High”, the value becomes ID_023_High.

 

> head(Label, n = 10)
 [1] "Middle" "High"   "Low"    "High"   "Middle" "High"   "Middle" "Middle" "High"   "Low"   
 ...
> head(ID, n = 10)
 [1]  54 115 109 346 298 139 221 447  27 331
 ...