treecm-package(treecm)
treecm-package()所属R语言包：treecm
Assessment of the position of the centre of mass of trees
评价中的树木的质量中心的位置
译者：生物统计家园网 机器人LoveR
描述----------Description----------
The centre of mass is a crucial data for arborists in order to consolidate a tree using steel or dynamic cables. Given field-recorded data on branchiness of a
该中心的质量是一个关键的数据为树艺师，为了巩固一棵树使用钢或动态电缆。 branchiness一个给定的字段上记录的数据
computes and plots the
计算并绘制了
simulates the shift in CM position as branches are pruned
模拟CM位置的转移，分支修剪
computes branches slenderness coefficient in order to aid the arborist identify potentially dangerous
计算分支柔度系数，以帮助识别潜在危险的树艺师
computes the force acting on a ground plinth and its best position relating to the tree centre of mass, should the tree need to be stabilized by a steel
计算的力，作用于接地趾板及其有关树的质量中心的最佳位置，应树需要稳定由钢
The tree stem is ideally sectioned in logs. The
树干是理想的切片log中。 “
the sum of volume of stem logs
干log数量的总和
the sum of
的总和
Field measures to be taken on logs and branches are described in importFieldData and are to be recorded on the tree itself, possibly using tree-climbing tecniques. In order to help the arborist in the pruning selection process a simple plot of branch coefficient of slenderness is implemented.
场的log和分支机构应采取的措施是，在importFieldData和被记录在树的本身，可能使用爬树tecniques。为了帮助树艺师在修剪的选择过程中，细长分支系数的简单图的实施。
注意----------Note----------
Branch biomass is computed by allometric equations relating its fresh weight (wood + leaves) to its diameter at point of insertion on the stem. Log biomass is computed by converting its volume to weight using wood fresh density. Volume is computed using Smalian's formula (see logBiomass description). A sample .CSV file is provided to guide through data filling in the field
科生物量的计算方法是异速生长方程的鲜重（木+叶），其直径在插入点干。登录生物量的计算方法是将它的体积，重量使用木材新鲜的密度。量计算使用Smalian的公式（logBiomass描述）。一个样品.CSV文件提供指导，通过数据填写在该领域
（作者）----------Author(s)----------
Marco Bascietto <a href="mailto:marco.bascietto@ibaf.cnr.it">marco.bascietto@ibaf.cnr.it</a>
参考文献----------References----------
(http://mbask.github.com/treecm/)
参见----------See Also----------
logBiomass importFieldData
logBiomassimportFieldData
实例----------Examples----------
data(stonePine1TreeData)
vectors <- treeVectors(stonePine1TreeData)
CM <- centreOfMass(vectors)
plot(vectors,
main = "Centre Of Mass",
col = "grey30",
txtcol = "grey30")
plot(CM)
summary(CM)
转载请注明:出自 生物统计家园网(http://www.biostatistic.net)。
注：
注1：为了方便大家学习，本文档为生物统计家园网机器人LoveR翻译而成，仅供个人R语言学习参考使用，生物统计家园保留版权。
注2：由于是机器人自动翻译，难免有不准确之处，使用时仔细对照中、英文内容进行反复理解，可以帮助R语言的学习。
注3：如遇到不准确之处，请在本贴的后面进行回帖，我们会逐渐进行修订。
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发表于 2012-10-1 11:49:44
