Dataset:  oil_disperse.dat

Source: M.A. Zahed, H.A. Aziz, M.H. Isa, L. Mohajeri (2012). "Response
Surface Analysis to Improve Dispersed Crude Oil Biodegradation,"
Clean - Soil, Air, Water, Vol. 40, #3, pp. 262-267

Description: Response surface analysis of percent crude oil removed by
3 factors: Nitrogen (mg/L), Phosphorous (mg/L), and Time (Days)

Variables/Columns
Nitrogen        4-8
Phosphorous     12-16
Days            18-24
Coded Nitrogen   28-32
Coded Phosphorous   36-40
Coded Days         44-48
% Crude Oil Removed   50-56