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Table 1 Summary statistics for the fitting and the evaluation datasets

From: Can random components explain differences in the height–diameter relationship in mixed uneven-aged stands?

Variable

Sp.

Fitting dataset

Evaluation dataset

No. obs.

Mean

Min.

Max.

SD

No. obs.

Mean

Min.

Max.

SD

d

1

421

20.5

7.5

52.0

10.5

39

24.6

8.0

40.4

8.6

2

992

16.7

6.5

57.0

8.2

189

15.7

6.2

91.3

10.4

3

2,382

18.1

5.7

80.0

9.6

569

19.0

5.2

71.0

11.0

4

6,143

17.8

6.6

99.5

10.4

1,919

16.8

6.6

62.0

9.5

5

271

20.9

7.4

65.5

11.1

94

20.2

7.3

55.5

10.4

6

601

22.3

7.5

78.5

13.1

132

26.6

8.0

67.5

12.3

7

628

16.9

6.7

47.5

7.7

81

16.8

8.0

46.5

6.8

8

1,842

17.8

6.9

68.0

9.7

866

14.8

7.0

55.4

7.7

9

1,109

20.9

6.5

80.0

10.9

292

18.2

7.3

79.3

10.9

10

3,576

17.8

6.0

120.0

11.9

800

18.4

7.1

90.7

11.2

11

1,784

18.5

7.0

86.0

11.1

586

17.2

7.5

81.3

10.9

12

289

25.2

5.0

103.1

18.5

55

22.1

5.9

57.0

14.2

13

322

23.6

5.0

90.0

19.5

15

16.4

6.0

89.0

20.0

14

1,000

14.3

5.7

104.0

7.7

255

14.8

5.0

62.0

8.5

15

458

14.0

6.8

87.0

8.1

123

16.8

7.0

52.8

10.1

16

921

14.9

6.7

65.8

7.7

330

14.9

7.0

70.0

9.1

h

1

421

12.7

2.8

29.3

5.6

39

17.4

4.8

25.9

6.3

2

992

11.6

2.3

35.7

4.2

189

10.5

4.0

38.1

4.9

3

2,382

12.6

2.5

38.8

5.5

569

12.5

3.1

36.5

5.9

4

6,143

13.5

2.9

37.9

5.6

1,919

12.5

2.5

32.3

5.3

5

271

14.1

2.9

31.4

5.8

94

13.4

2.9

26.5

5.0

6

601

15.8

4.6

33.8

6.2

132

17.9

5.2

35.3

5.6

7

628

10.1

1.6

27.0

4.8

81

10.0

3.2

19.8

3.5

8

1,842

11.5

2.7

35.0

5.1

866

9.6

2.7

31.7

3.7

9

1,109

13.9

2.7

45.3

5.9

292

11.6

2.7

25.1

4.9

10

3,576

9.8

1.8

32.9

4.5

800

9.3

2.4

30.8

4.3

11

1,784

9.1

1.9

40.1

4.2

586

9.1

2.1

28.8

4.2

12

289

17.6

2.6

46.2

9.4

55

12.7

3.9

30.6

6.7

13

322

13.2

2.3

34.4

8.1

15

7.2

3.7

22.7

4.6

14

1,000

7.3

2.6

26.0

3.1

255

7.0

2.0

19.6

3.2

15

458

7.5

2.4

29.8

3.3

123

7.3

2.1

24.3

3.8

16

921

6.4

1.9

21.9

2.5

330

5.9

2.2

18.2

2.4

N

 

149

611

64

1992

312

38

668

196

1,616

310

G

 

149

21.1

3.3

58.4

9.3

38

20.9

7.4

36.3

7.2

dg

 

149

21.9

11.8

50.7

5.4

38

20.9

12.4

35.8

5.1

hdom

 

149

17.6

5.4

32.3

4.8

38

16.9

9.3

26.8

4.5

ddom

 

149

36.2

17.5

67.2

7.6

38

35.3

24.6

55.4

7.2

  1. Species numbers are as described in the text
  2. d (centimetres) diameter at breast height (1.3 m above ground level), h (metres) total tree height, N (trees per hectare) number of trees per hectare; G (square metres per hectare) stand basal area, dg (centimetres) quadratic mean diameter, hdom (metres) dominant height, ddom (metres) dominant diameter