branchSR: Compute the slenderness ratio
In treecm: Centre of Mass Assessment and Consolidation of Trees
Description
Usage
Arguments
Value
Note
References
Description
slenderness ratio is an important index of stability of trees and branches
Usage
1
Arguments
x
the data frame holding the measures needed to perform the computation
diameter
The name of the data frame column holding diameter of the branch
length
The name of the data frame column holding length of the branch
tilt
The name of the data frame column holding tilt of the branch
Value
slenderness ratio
Note
The coefficient takes into account branch angle:
SL_c=\frac{L}{D} \cdot (1 + cos α),
where α is the branch angle (0 degrees = horizontal, 90 degrees vertical),
L is branch length in m, D is branch diameter in cm
Vertical branches have SL = SL_c
References
Mattheck, C. and Breloer, H. The Body Language of Trees: A Handbook for Failure Analysis (Research for Amenity Trees) 1995, HMSO (London)
treecm documentation built on May 1, 2019, 9:30 p.m.
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Description Usage Arguments Value Note References
Description
slenderness ratio is an important index of stability of trees and branches
Usage
1 |
Arguments
x |
the data frame holding the measures needed to perform the computation |
diameter |
The name of the data frame column holding diameter of the branch |
length |
The name of the data frame column holding length of the branch |
tilt |
The name of the data frame column holding tilt of the branch |
Value
slenderness ratio
Note
The coefficient takes into account branch angle: SL_c=\frac{L}{D} \cdot (1 + cos α), where α is the branch angle (0 degrees = horizontal, 90 degrees vertical), L is branch length in m, D is branch diameter in cm Vertical branches have SL = SL_c
References
Mattheck, C. and Breloer, H. The Body Language of Trees: A Handbook for Failure Analysis (Research for Amenity Trees) 1995, HMSO (London)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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