The carcinoembryonic antigen (CEA) test measures the amount of this protein that may appear in the blood of some people who have certain kinds of cancers, especially cancer of the large intestine (colon and rectal cancer).
In this INDEX / MATCH example, the MATCH function will find the position of Jacket in column B, and the INDEX function will return the code from the same position in column A. Set up the worksheet as shown at right. Enter the following formula in cell B6: =INDEX($A$2:$A$4,MATCH(A6,$B$2:$B$4,0))
Instead of typing the column number in the VLOOKUP formula, we can use the MATCH function. The MATCH function finds the position of an item in a list, and returns the position number. In the screen shot below, the MATCH formula returns 2 as the position of Region, in the heading cells (A1:D1) for the lookup table.