Need to reference a cell using a variable or cell value.

Question

Hi.
I am trying to build a master sheet and then have sub sheets that detail the information from the master. My master sheet looks like this:
1 | 101 | Bob | Smith |
2 | 104 | Sally | Jones |
3 | 108 | Tim | Abbott |
Then on separate sheets I want a summary for each line like this:
1 | Name | Bob |
2 | ID | 101 |
Now, I know I could just build this by creating references to the master sheet, but in reality my sheets are far more complex and I really need to be able to reference them by line number. So I would like to have a hidden cell (say AA1) on each summary which designates the line and then reference Master:B{AA1}. I did this years ago on excel but have no idea how I did it or howo to do it in Numbers.
Any help is greatly appreciated.
Thom

Answer 1

Hi 86,
Rearrange your table then add another table to find the result:
A2 in Table 1-1 will find the earliest date in Table 1 without having to sort Table 1.
A2 contains this formula
=MIN(Table 1::A)
B2 in Table 1-1 uses VLOOKUP to find which ID matches that MIN date.
The reason for rearranging your table (Table 1) is that VLOOKUP compares a search value to the values in the leftmost column of a specified collection.
(in this case, it looks in the leftmost column of the range Table1::A:B, then returns a match from column 2 of that range).
I forgot to include "Exact Match" in the VLOOKUP formula. Is that what you want, or "Close Match"?
Edit: I don't suppose that matters because MIN will always give an exact match. Duh!
Regards,
Ian.