I'm doing emission testing on a diesel engine capturing Co, Co2, Nox,
No & HC levels with the trace data being captured to an Excel
spreadsheet. The test's are 20 minutes long with varing speeds and
loads. The data is captured at 1 second intervals for a total of 1200
points. What I would like to do is take a small sample of the trace
data, say a 10 second interval, and see if there are any matching
points in the rest of the trace. I'm not concerned if the overal value
is greater or lower, I am more interested in the curve of the trace
matching,

ie. selected sample trace A = 2,4,6,8,6,4,2,2,4 trace B =
12,14,16,18,16,14,12,12,14
B trace value is greater than A, but the curve of the trace is the
same.

Is there a function within Excel that can do this? Thanks