

(data "abrasion"
:about "Data about the amount of material lost when rubber specimens are rubbed with an abrasive material. The measures are the material lost of the rubber specimens and the hardness and tensile strength of the abrasive material. Data are obtained from Luke Tierney's book (p. 37) and are appropriate for regression analysis by REGRES."
:title "AbrasionLoss"
:variables '("Hardness" "Tensile-Strength" "Abrasion-Loss")
:types '("Numeric" "Numeric" "Numeric")
;;the following code takes variables and converts to data-matrix
:data (combine (transpose (matrix '(3 30) 
'(45 55 61 66 71 71 81 86 53 60 64 68 79 81 56 68 75 83 88 59 71 80 82 89 51 59 65 74 81 86
162 233 232 231 231 237 224 219 203 189 210 210 196 180 200 173 188 161 119 161 151 165 151 128 161 146 148 144 134 127
372 206 175 154 136 112 55 45 221 166 164 113 82 32 228 196 128 97 64 249 219 186 155 114 341 340 284 267 215 148)))))