9.5.1 Appendix: from selected proportion to selection intensity

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Last updated: jul. 31, 2024
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The table below can be used to translate selected proportions to selection intensities. In the table p% is the selected proportion in percentages, and i is the corresponding selection intensity. For selected proportions in between the values mentioned in the table, take the linear approximation of i. For selected proportions larger than 50%, take the i for (1-p) and multiply that i by (1-p)/p. The table is a simplified version from the table published in Falconer and Mackay, 1996.

p%

i

p%

i

p%

i

0.01

3.960

1.0

2.665

10

1.755

0.02

3.790

1.2

2.603

11

1.709

0.03

3.687

1.4

2.549

12

1.667

0.04

3.613

1.6

2.502

13

1.627

0.05

3.554

1.8

2.459

14

1.590

0.06

3.507

2.0

2.421

15

1.554

0.07

3.464

2.2

2.386

16

1.521

0.08

3.429

2.4

2.353

17

1.489

0.09

3.397

2.6

2.323

18

1.458

0.10

3.367

2.8

2.295

19

1.428

 

 

3.0

2.268

20

1.400

0.12

3.317

3.2

2.243

21

1.372

0.14

3.273

3.4

2.219

22

1.346

0.16

3.234

3.6

2.197

23

1.320

0.18

3.201

3.8

2.175

24

1.295

0.20

3.170

4.0

2.154

25

1.271

0.22

3.142

4.2

2.135

26

1.248

0.24

3.117

4.4

2.116

27

1.225

0.26

3.093

4.6

2.097

28

1.202

0.28

3.070

4.8

2.080

29

1.180

0.30

3.050

5.0

2.063

30

1.159

0.32

3.030

 

 

31

1.138

0.34

3.012

5.5

2.023

32

1.118

0.36

2.994

6.0

1.985

33

1.097

0.38

2.978

6.5

1.951

34

1.078

0.40

2.962

7.0

1.918

35

1.058

0.42

2.947

7.5

1.887

36

1.039

0.44

2.932

8.0

1.858

37

1.020

0.46

2.918

8.5

1.831

38

1.002

0.48

2.905

9.0

1.804

39

0.984

0.50

2.892

9.5

1.779

40

0.966

 

 

10.0

1.755

41

0.948

0.55

2.862

 

 

42

0.931

0.60

2.834

 

 

43

0.913

0.65

2.808

 

 

44

0.896

0.70

2.784

 

 

45

0.880

0.75

2.761

 

 

46

0.863

0.80

2.740

 

 

47

0.846

0.85

2.720

 

 

48

0.830

0.90

2.701

 

 

49

0.814

0.95

2.683

 

 

50

0.798

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