absTreshold: Compute absolute threshold
In TRADER: Tree Ring Analysis of Disturbance Events in R
absTreshold R Documentation
Compute absolute threshold
Description
"Blind" definition of the absolute-increase threshold of Fraver & White 2005 (1.25*standard deviation).
Usage
absTreshold(abs, tvalue = 1.25)
Arguments
abs
A data.frame with series as columns and years as rows such as that produced by read.* function of dplR .
tvalue
constat from Fraver & White 2005
Details
You can specifie threshold value or use 1.25 * standard deviation used in Fraver & White 2005.
Value
Returns one threshold value.
Note
Check the reference.
Author(s)
Pavel Fibich <pavel.fibich@prf.jcu.cz>, Jan Altman <altman.jan@gmail.com>, Tuomas Aakala <tuomas.aakala@helsinki.fi>, Jiri Dolezal <jiriddolezal@gmail.com>
References
Fraver, S. & White, A.S. 2005. Identifying growth releases in dendrochronological studies of forest disturbance. Canadian Journal of Forest Research-Revue Canadienne De Recherche Forestiere, 35, 1648-1656.
See Also
help absoluteIncrease
Examples
data(relData)
abs<-absIncrease(relData1)
absTreshold(abs)
TRADER documentation built on May 29, 2024, 2:35 a.m.
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| absTreshold | R Documentation |
Compute absolute threshold
Description
"Blind" definition of the absolute-increase threshold of Fraver & White 2005 (1.25*standard deviation).
Usage
absTreshold(abs, tvalue = 1.25)
Arguments
abs |
A data.frame with series as columns and years as rows such as that produced by read.* function of dplR . |
tvalue |
constat from Fraver & White 2005 |
Details
You can specifie threshold value or use 1.25 * standard deviation used in Fraver & White 2005.
Value
Returns one threshold value.
Note
Check the reference.
Author(s)
Pavel Fibich <pavel.fibich@prf.jcu.cz>, Jan Altman <altman.jan@gmail.com>, Tuomas Aakala <tuomas.aakala@helsinki.fi>, Jiri Dolezal <jiriddolezal@gmail.com>
References
Fraver, S. & White, A.S. 2005. Identifying growth releases in dendrochronological studies of forest disturbance. Canadian Journal of Forest Research-Revue Canadienne De Recherche Forestiere, 35, 1648-1656.
See Also
help absoluteIncrease
Examples
data(relData)
abs<-absIncrease(relData1)
absTreshold(abs)
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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