elmerbotha, can you please provide a larger sample size, say 5 or 10 rows for two metals? Presumably in your actual data you will have several rows like this:
Metal Result Unit of Measurement
Pt 1.26754 %
Pt 1.26324 %
Pt 1.26132 %
Pt 1.26971 %
Pt 1 ppm
Pt 2 ppm
Pt 1 ppm
Pt 1 ppm
and you want statistics by metal by UOM?
If you're unsure, have a quick read of the link at the bottom of Jeff Moden's post, it will help you to provide the information we need to solve your problem.
Cheers
ChrisM
For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden