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On Mon, 22 Jan 2024, Rich Shepard wrote: > As an aquatic ecologist I see regulators apply the geometric mean to > geochemical concentrations rather than using the arithmetic mean. I want to > know whether the geometric mean of a set of chemical concentrations (e.g., > in mg/L) is an appropriate representation of the expected value. If not, I > want to explain this to non-technical

...2 20 0 S 2 21 0 N 2 22 1 U 2 23 1 S 2 24 1 N 2 25 2 U 2 26 2 S 2 27 2 N 2 The Factor.2 indicates the type of a fertilizer, such as urea, and the Factor.3 indicates the weight of the fertilizer. So the treatments with Factor.3 == 0 at each levels of Factor.1 are same. That means No.1, No.2 and No.3 are same, No.4, No.5 and No.6 are same, and No.7, No.8 and No.9 are same. Thus, in the real experiment, those treatments were not p...