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This data set gives the equivalence ratios and peak nitrogen oxide emissions in a study using pure ethanol as a spark-ignition engine fuel.
data(NOdata)
This data frame consists of:
NOThe peak nitrogen oxide emission levels.
NO
EquivalenceThe equivalence ratios for the engine at compression ratios from 7.5 to 18.
Equivalence
Hurn, M., Justel, A. and Robert, C. P. (2003) Estimating Mixtures of Regressions, Journal of Computational and Graphical Statistics 12(1), 55--79.