data.fertilizer | R Documentation |
This is a data set on the use of fertilizers (phosphate and nitrogen) in the cultivation of barley.
data.fertilizer
A data frame with 30 observations on the following three variables:
phos | amount of phosphate (in kg per hectare). |
nit | amount of nitrogen (in kg per hectare). |
barley | barley crop yield (in units of 100 kg per hectare). |
In Auer (2023, Chap. 9) and Auer et al. (2023, Chap. 9). These hypothetical data are used to illustrate the estimation of a multivariate linear regression model.
Auer, L.v. (2023): Ökonometrie - Eine Einführung, 8th ed., Springer-Gabler (https://www.oekonometrie-lernen.de).
Auer, L.v., Hoffmann, S. & Kranz, T. (2023): Ökonometrie - Das R-Arbeitsbuch, 2nd ed., Springer-Gabler (https://www.oekonometrie-lernen.de).
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