PLEASE EXPLAIN THE CODE in detail

Discuss how to solve the following problems. Youre not just writing the R code, you are also discussing the process.

• data=1:10
  • Write R code(s) to retrieve the 4th through the 8th items in data using positive indexes.
  • Write R code(s) to retrieve the 4th through the 8th items in data using negative indexes.
  • Assume idxs is a logic vector, and data[idxs] retrieves the 4th through the 8th items in data. What are the contents of idxs?
• Use rep() to create the following vectors.
  • 2 4 6 8 2 4 6 8 2 4 6 8
  • 2 2 2 4 4 4 6 6 6 8 8 8
  • 2 4 6 8 2 4 6 8 2
  • 2 4 4 6 6 6 8 8 8 8