THIS IS DATAPLOT DATA FILE HAMAKER.DAT THRUST FORCE OF A DRILL REFERENCE--HAMAKER, JISI, 1971, PAGE 354-358 RESPONSE VARIABLE--THRUST FORCE NUMBER OF DISTINCT INDEPENDENT VARIABLES--3 NUMBER OF OBSERVATIONS = 30 TOTAL NUMBER OF DISTINCT INDEPENDENT VARIABLES PER CARD--3 TOTAL NUMBER OF INDEPENDENT VARIABLES PER CARD--4 ORDER OF VARIABLES ON A CARD-- 1. THRUST FORCE (RESPONSE VARIABLE) 2. DRILL SPEED (5 LEVELS) 3. MATERIAL (2 LEVELS) 4. FEEDS (3 LEVELS) 5. MATERIAL X FEED SUBSET DEFINITION VARIABLE (6 LEVELS) STATISTICAL AREA--MULTI-FACTOR; 3-WAY ANOVA NOTE--THIS DATA DRAWN FROM HAMAKER ARTICLE IN JOURNAL OF INTERNATIONAL STAT. INSTITUTE 1971, PAGES 354-358 TO READ THIS FILE INTO DATAPLOT-- SKIP 25 READ HAMAKER.DAT Y X1 X2 X3 TAG THRUST DRILL MATERIAL FEED MAT*FEED FORCE SPEED RATE -------------------------------------------- 116 100 1 1 1 97 220 1 1 1 84 475 1 1 1 58 715 1 1 1 70 870 1 1 1 331 100 1 2 2 293 220 1 2 2 272 475 1 2 2 262 715 1 2 2 293 870 1 2 2 570 100 1 3 3 556 220 1 3 3 497 475 1 3 3 611 715 1 3 3 653 870 1 3 3 181 100 2 1 4 133 220 2 1 4 104 475 2 1 4 92 715 2 1 4 106 870 2 1 4 376 100 2 2 5 332 220 2 2 5 324 475 2 2 5 411 715 2 2 5 445 870 2 2 5 768 100 2 3 6 725 220 2 3 6 786 475 2 3 6 892 715 2 3 6 1355 870 2 3 6