lorey.height: Lorey's height
In sitreeE: Sitree Extensions

Description Usage Arguments Value Author(s) See Also Examples

Calculates Lorey's height (mean height weigted by basal area). If group.id is not NULL, it will calculate Lorey's height for each group.

1	lorey.height(BA, height, group.id = NULL)

`BA`	A vector with the basal areas of the trees
`height`	A vector with the height of the trees
`group.id`	An optional vector with a grouping variable.

If a grouping variable is provided it returns a data frame with two columns (group.id, and lorey.height). If a grouping variable is not provided it will return the Lorey's height.

Clara Anton Fernandez (caf@nibio.no)

height.of.X.tallest.trees

library(sitree)
BA <- pi*(tr$dbh/2)^2
lorey.height(BA, tr$height)
lorey.height(BA, tr$height, tr$plot.id)

Loading required package: sitree
Loading required package: data.table
[1] 141.0231
   group.id lorey.height
1         1     97.66872
2         2    152.82582
3         3     99.91531
4         4    124.40202
5         5     77.26734
6         6     58.51390
7         7    138.32290
8         8    100.48720
9         9    119.40171
10       10    143.23716
11       11    243.57256
12       12    140.64999
13       13    134.14133
14       14    118.29877
15       15     57.56511
16       16    115.12825
17       17     78.41576
18       18     80.06850
19       19    111.40069
20       20    217.88143
21       21    135.65803
22       22     78.89699
23       23    105.41592
24       24    231.68781
25       25    113.03701
26       26    136.91450
27       27    135.26344
28       28    151.38594
29       29    132.31834
30       30    120.29573
31       31    145.18246
32       32    116.53145
33       33    129.86614
34       34     47.98220
35       35    120.16829
36       36    165.63373
37       37    130.13411
38       38    200.67182
39       39    179.56329
40       40    111.23537
41       41    113.83752
42       42     90.49824
43       43     99.52636
44       44    134.98243
45       45    155.75211
46       46    116.50396
47       47    124.53763
48       48    143.08231
49       49     86.56008
50       50    189.76657
51       51    192.03218
52       52     70.22012
53       53     99.78080
54       54    147.13385
55       55     86.75842
56       56    188.08117
57       57     53.15383
58       58     88.31989
59       59    134.52631
60       60     81.20151
61       61    106.74954
62       62     89.38146
63       63    123.45617
64       64    128.67033
65       65    139.66587
66       66    100.88347
67       67    132.21853
68       68    240.18661
69       69    157.36547
70       70    134.67224
71       71     90.00000
72       72     76.76367
73       73     87.08306
74       74    103.12078
75       75    200.27606
76       76     89.08211
77       77    144.78998
78       78    148.56188
79       79    110.29530
80       80    185.79156
81       81     93.23628
82       82    136.36973
83       83     75.07045
84       84     70.48670
85       85    153.82305
86       86     52.48655
87       87     77.20552
88       88     53.22902
89       89     79.87405
90       90     61.77521
91       91    157.40158
92       92    134.74565
93       93     59.89300
94       94    135.54527
95       95    119.56802
96       96     36.12433