Dataset: berry_sugar_chewy.csv Source: I. Zouid, R. Siret, F. Jourjion, E. Mehinagic, L. Rolle (2013). "Impact of Grapes Heterogeneity According to Sugar Level on Both Physical and Mechanical Berries Properties and their Anthocyanins Extractability at Harvest," Journal of Texture Studies, Vol. 44, pp. 95-103. Description: NaCl concentration, Sugar equivalent (g/L) and Chewiness (mJ) of berries from 6 sugar equivalent levels (15 berries/level). Variables: nacl sugar chewiness