y Variables to DetrendSpecify the variables to be detrended. Each variable represents a spectrum.Tip : You can also use the List-Style Specification of y Variables to Detrend field, which is particularly useful when specifying a large number of variables.To Specify y Variables to Detrend:The Available Variables field becomes populated with variables from the specified data set.
Left-click a single variable, or hold down while left-clicking multiple variables, from the Available Variables field.
Click to add the selected variable(s) to the Y Variables to Detrend field.