Dataset rubber

From Cleveland (1993): data from an industrial experiment in which thirty rubber specimens were rubbed by an abrasive material. Measurements of three variables - abrasion loss, hardness, and tensile strength - were made for each specimen. Abrasion loss is the amount of material abraded from a specimen per unit of energy expended in the rubbing; tensile strength is the force per unit of cross-sectional area required to break a specimen; and hardness is the rebound height of a steel indenter dropped onto a specimen. The goal is to determine the dependence of abrasion loss on tensile strength and hardness

rubber

Format

A data frame with 78 rows and 2 variables:

hardness

hardness

tensile.strength

tensile strength

abrasion.loss

abrasion loss

ts.low

tensile.strength - 180 if tensile.strength < 180 or 0 otherwise

ts.high

tensile.strength - 180 if tensile.strength > 180 or 0 otherwise

Source

Cleveland W. S. (1993). “Visualizing Data”. Hobart Press.