help: Help functions.

Description

Help function used in other functions.

Usage

absIncrease(data, m1 = 10, m2 = 10, gfun = mean)
PGC(data, m1 = 10, m2 = 10, gfun = mean)
PGCreleases(change, criteria = 0.2)
PGCreleasesSplechtna(change, criteria = 0.5)
priorGrowth(data, m1 = 10, m2 = 10, gfun = mean, dom1 = 0)
writeReleaseStats(release_list, mytext)
removeMajorFromModerate(mod,maj,zero,on)
relListToDataFrame(release_list,data)

Value

Various.

Arguments

data: Data frame returned by read.* function of dplR.
m1: Determines the number of years to be averaged (including target year) for period prior the potential releas.
m2: Determines the number of years to be averaged (not including target year) for period after the potential releas.
gfun: Determines if M1 and M2 values are mean or median for selected period.
criteria: Threshold for detection of moderate release.
change: Percentage growth change.
dom1: If prior growth (dom1=0) or m1 is computed (dom1=1).
release_list: List of releases per tree.
mod: List of moderate releases per tree.
maj: List of major releases per tree.
zero: Value for the beginning of the list.
on: List of growth changes per tree.
mytext: Prefix of the info text.

Author

Pavel Fibich <pavel.fibich@prf.jcu.cz>, Jan Altman <altman.jan@gmail.com>, Tuomas Aakala <tuomas.aakala@helsinki.fi>, Jiri Dolezal <jiriddolezal@gmail.com>

Details

Just helping functions.

References

Altman J, Fibich P, Dolezal J & Aakala T (2014) TRADER: a package for Tree Ring Analysis of Disturbance Events in R. Dendrochonologia 32: 107-112.

Examples

Run this code

data(relData)

abs<-absIncrease(relData1)

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