医学统计学第四版 课文例22-01

例22-1 某研究者测得84名10岁男孩的身高、坐高、体重、胸围、肩宽、肺活量等6项生长发育指标，数据见表22-2。试作主成分分析。

表22-2 84名10岁男孩的6项生长发育指标观测值

编号身高(cm) 坐高(cm) 体重(kg) 胸围(cm) 肩宽(cm) 肺活量(l)

1 120.1 66.3 23.8 61.0 27.3 1210

2 120.7 67.6 23.4 59.8 27.1 1210

3 121.2 66.5 22.9 59.0 26.0 1040

4 121.

5 67.8 24.

6 59.5 26.4 1620

5 122.5 69.2 24.4 60.7 26.4 1690

6 122.

7 69.1 27.2 64.5 28.4 1150

7 123.2 64.3 20.0 56.1 26.1 1150

8 123.3 69.0 24.9 58.4 27.2 1460

9 123.4 67.4 21.8 59.0 27.1 1190

10 123.9 67.1 23.5 60.2 28.4 1840

11 124.5 67.8 25.2 63.0 27.8 1250

12 124.8 67.9 22.3 58.1 27.3 1480

13 124.9 67.8 22.0 58.0 26.8 1310

14 125.3 69.3 24.7 60.0 28.0 1660

15 125.6 69.1 22.8 59.0 26.5 1580

16 125.8 69.6 25.7 61.0 27.0 1460

17 126.0 67.1 30.2 68.0 28.8 1240

18 126.2 68.4 25.2 60.5 27.2 1100

19 126.8 67.5 23.6 58.5 27.4 1250

20 127.1 69.8 23.0 57.7 27.8 1270

21 127.6 67.9 24.3 59.0 28.4 1300

22 127.7 69.7 24.1 60.0 27.7 1350

23 128.3 68.5 21.6 55.5 27.0 1250

24 128.5 71.2 27.1 62.0 27.5 1720

25 128.5 67.3 22.6 57.4 28.3 1480

26 129.4 69.8 24.9 60.5 27.6 1380

27 129.0 67.4 26.7 63.7 29.8 1170

28 129.8 71.0 26.1 62.0 28.4 1640

29 131.6 70.7 28.7 62.8 28.9 1640

30 130.2 71.8 25.0 58.6 27.8 1150

31 130.5 68.6 26.1 60.7 27.7 1430

32 130.6 69.2 23.4 54.4 27.8 1150

33 131.4 70.4 25.5 63.2 28.4 1150

34 131.6 70.2 25.6 58.9 28.6 1320

35 131.7 73.5 27.4 62.0 27.0 1360

36 132.0 71.2 26.3 61.5 25.3 1460

37 132.2 70.1 25.7 61.4 28.3 1380

38 132.5 71.8 24.5 57.0 28.4 1300

39 132.7 72.2 27.0 61.3 28.0 1220

41 133.1 75.1 30.1 67.0 29.7 1910

42 133.5 71.7 26.5 62.5 28.2 1800

43 133.6 72.2 24.8 58.5 27.9 1560

44 134.0 73.0 26.0 60.5 27.4 1840

45 134.3 75.2 28.2 62.0 30.3 1470

46 134.4 69.9 25.5 60.7 28.1 1590

47 134.1 72.2 26.6 63.0 29.0 1430

48 134.6 75.4 32.5 66.0 29.8 1760

49 135.3 93.3 27.9 61.8 27.8 1470

50 135.6 73.1 28.1 65.8 28.9 1580

51 136.5 72.9 28.2 62.0 29.2 1580

52 137.1 72.4 27.6 62.8 29.1 1840

53 137.4 74.2 28.3 62.5 30.0 1810

54 138.1 72.3 29.5 62.4 30.2 1850

55 140.0 75.9 34.9 68.8 31.5 2120

56 140.7 74.0 32.0 64.4 30.5 1760

57 141.0 76.2 32.5 63.8 30.8 1800

58 141.7 76.2 29.1 65.0 29.0 1260

59 142.4 77.6 19.3 70.0 30.6 1860

60 144.7 74.8 27.0 58.3 28.2 1800

61 136.8 72.2 26.3 61.4 29.3 1470

62 121.1 66.3 22.9 59.0 27.6 1260

63 132.7 73.6 25.3 58.6 27.8 1570

64 125.0 68.8 25.7 60.5 26.9 1290

65 133.2 71.7 27.3 60.7 28.5 1580

66 132.8 72.9 28.6 64.7 30.8 1690

67 131.6 69.8 25.4 59.7 27.6 1670

68 133.1 69.7 25.9 58.0 28.3 1300

69 134.0 70.8 25.8 59.6 28.8 1610

70 134.3 72.2 26.3 61.2 28.4 1580

71 129.1 72.9 27.7 62.2 29.3 1570

72 140.1 75.1 32.1 67.0 30.3 1660

73 132.6 72.5 27.9 62.0 28.1 1040

74 128.3 69.0 23.6 58.5 27.6 1290

75 145.8 77.7 34.5 68.0 32.5 1980

76 133.3 71.0 25.6 61.5 28.2 1210

77 134.3 73.2 25.6 61.0 28.3 1300

78 138.1 73.5 27.8 61.2 27.8 1310

79 135.6 72.8 25.9 59.6 29.1 1590

80 128.3 69.2 24.1 58.5 27.7 1270

81 129.7 69.4 24.7 61.7 28.0 1310

82 143.6 76.8 37.6 70.0 31.8 2280

83 136.6 75.1 32.3 67.2 30.4 1580