Dataset: orange_emul.txt

Source: H. Mirrhosseini and C. P. Tan (2010). "Discrimination of Orange
Beverage Emulsions with Different Formulations Using Multivariate
Analysis," Journal of the Science of Food and Agriculture; 
Vol. 90, pp 1308-1316.

Description: Results of a Response Surface fit as a Central Composite
Design in 3 Blocks. 
Response Vars:
Turbidity (nephelometic turbidity units (NTU))
Mean Droplet Size (nanometers)
Polydispersity index
Viscosity (mPa s)
Density (g/cm^3)
Explanatory Variables:
Gum Arabic (g/kg)  - Original level divided by 10 to match published results
Xanthan Gum (g/kg) -   "       "        "   "  "   "  "        "        "
Orange Oil (g/kg)  -   "       "        "   "  "   "  "        "        "

Variables/columns
Block    8
Gum Arabic (X1)   10-16
Xanthan Gum (X2)  18-24
Orange Oil  (X3)  26-32
Block 1 Dummy     40
Block 2 Dummy     48
Block 3 Dummy     56
Turbidity (Y1)      58-64
Droplet Size (Y2)   66-72
Polydispersity (Y3) 74-80
Viscosity (Y4)      82-88
Density (Y5)        90-96