Dataset:  murals_rsm.csv

Source: Z. hu, J. Du, Z. Lu, X. Yao, X. Jiang, J. Yang, L. Liu (2022).
"Optimization of GuHCl Extraction Protocol on Collagen-Based Binders
in Murals by Response Surface Methodology," Journal of Cultural Heritage,
Vol. 56, pp. 56-64.

Description: Response Surface Experiment (Central Composite Design) to
determine optimal levels of 4 factors on extracting efficiency (%) of guanidine hydrochloride
(GuHCl) from mural model samples.
Factors:
GuHCl concentration (1.5-2.5 M)
Extraction Time (90-180 minutes)
Extraction Temperature (50-70C)
Ultrasound Power (120-280W)

Variable Names:
runID    (1-30)
GuHCl_C    (Coded)
extTime_C   (Coded)
extTemp_C   (Coded)
utraPwr_C   (Coded)
extEff_Y    (Response)
GuHCl
extTime
extTemp
ultraPwr