The data contains 88 sets of measurements of peak nitrogen oxide emission levels from an experiment in which ethanol was burned in a single-cylinder engine. The emission levels of nitrogen oxides were recorded under different settings of the compression ratio and equivalence ratio of the engine.
ethanolA data frame containing 88 observations and the following 3 variables.
concentration of nitric oxide (NO) and nitrogen dioxide (NO2) in engine exhaust.
compression ratio of engine.
equivalence ratio. This is a measure of the richness of the air and ethanol fuel mixture.
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