maybe this is very simple but I'm stuck and hoping you could help?

I have a variable

And a variable that indicates which rows should be read in what order, e.g.

So my desired outcome table would look like

Is there a way to achieve this?

Thank you!

CodePudding user response：

You can use the Row_order vector to index the Name vector (pick values in order):

Name <- letters[1:5]
Row_order <- c(4, 5, 1, 3, 2)
Name[Row_order]
[1] "d" "e" "a" "c" "b"