spati2: Heights and diameters of Scots pine trees in Ilomantsi,...
In lmfor: Functions for Forest Biometrics
spati2 R Documentation
Heights and diameters of Scots pine trees in Ilomantsi, Finland.
Description
A dataset of Scots pine tree heights and diameters.
The trees were collected on 56 fixed-area sample plots. This is a subset of the larger data set spati.
Usage
data(spati2)
Format
A data frame with 1678 observations on the following 3 variables.
plotA unique sample plot id.
dTree diameter at breast height (1.3 meters above the ground) in cm.
hTree height, m.
nThe total number of trees on the plot.
dvarThe variance of tree diameters on the plot.
dmeanThe mean of tree diameters on the plot.
Author(s)
The data were collected by Timo Pukkala.
References
Pukkala, T. 1989. Prediction of tree diameter and height in a Scots pine stand as a
function of the spatial pattern of trees. Silva Fennica 23(2): 83-99. doi: 10.14214/sf.a15532
Mehtatalo, Lauri and Lappi, Juha 2020. Biometry for Forestry and Environmental Data: with examples in R.
New York: Chapman and Hall/CRC. 426 p. doi: 10.1201/9780429173462
Examples
data(spati2)
fithd(spati2$d,spati2$h,spati2$plot)
lmfor documentation built on April 30, 2022, 1:08 a.m.
R Package Documentation
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| spati2 | R Documentation |
Heights and diameters of Scots pine trees in Ilomantsi, Finland.
Description
A dataset of Scots pine tree heights and diameters.
The trees were collected on 56 fixed-area sample plots. This is a subset of the larger data set spati.
Usage
data(spati2)
Format
A data frame with 1678 observations on the following 3 variables.
plotA unique sample plot id.
dTree diameter at breast height (1.3 meters above the ground) in cm.
hTree height, m.
nThe total number of trees on the plot.
dvarThe variance of tree diameters on the plot.
dmeanThe mean of tree diameters on the plot.
Author(s)
The data were collected by Timo Pukkala.
References
Pukkala, T. 1989. Prediction of tree diameter and height in a Scots pine stand as a function of the spatial pattern of trees. Silva Fennica 23(2): 83-99. doi: 10.14214/sf.a15532
Mehtatalo, Lauri and Lappi, Juha 2020. Biometry for Forestry and Environmental Data: with examples in R. New York: Chapman and Hall/CRC. 426 p. doi: 10.1201/9780429173462
Examples
data(spati2) fithd(spati2$d,spati2$h,spati2$plot)
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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