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))
The MATCH function searches for a specified item in a range of cells, and then returns the relative position of that item in the range. For example, if the range A1:A3 contains the values 5, 25, and 38, then the formula =MATCH(25,A1:A3,0) returns the number 2, because 25 is the second item in the range. Tip: Use MATCH instead of one of the LOOKUP functions when you need the position of an item in a range instead of the item itself.