# spaeth_08.txt # # Discussion: # # Data matrix with 80 rows and 2 columns. # # This data naturally groups into three long thin ellipsoids. # # Modified: # # 04 April 2002 # # Reference: # # Helmut Spaeth, # Cluster Dissection and Analysis, # Theory, FORTRAN Programs, Examples, # Ellis Horwood, 1985, page 161. # 16 50 37 50 40 50 20 49 37 48 34 46 38 45 21 44 35 43 24 42 32 42 32 39 24 38 30 38 27 36 30 35 25 34 28 34 27 32 1 31 29 31 25 30 3 29 23 29 29 29 24 28 2 26 6 26 19 26 22 26 32 26 10 25 20 24 5 22 12 22 16 22 34 22 9 20 15 20 13 19 18 19 15 18 13 17 22 17 11 15 15 15 18 15 24 15 36 15 39 14 12 13 10 12 15 12 19 12 24 12 29 12 37 11 9 10 7 9 22 9 26 9 41 9 29 8 34 8 39 8 6 7 4 5 26 5 37 5 42 5 44 5 32 4 2 3 37 2 47 2 1 1 30 1 41 1 44 1 46 1