linage: Tune stratigraphic series to an astronomical target using...

In astrochron: A Computational Tool for Astrochronology

Tune stratigraphic series to an astronomical target using graphical interface

Description

Tune stratigraphic series to an astronomical target using graphical interface similar to Analyseries 'Linage' routine (Paillard et al, 1996).

Usage

linage(dat,target,extrapolate=F,xmin=NULL,xmax=NULL,tmin=NULL,tmax=NULL,size=1,plotype=1,
       output=1,genplot=T)

Arguments

dat	Stratigraphic series for tuning, with two columns. First column is depth/height.
target	Astronomical tuning target series. First column is time.
extrapolate	Extrapolate sedimentation rates above and below 'tuned' interval? (T or F)
xmin	Minimum height/depth to plot.
xmax	Maximum height/depth to plot.
tmin	Minimum time value to plot.
tmax	Maximum time value to plot.
size	Multiplicative factor to increase or decrease size of symbols and fonts.
plotype	Type of plot to generate: 1= points and lines, 2 = points, 3 = lines
output	Return which of the following? 1 = tuned stratigraphic series; 2 = age control points; 3 = tuned stratigraphic series and age control points
genplot	Generate additional summary plots (tuned record, time-space map, sedimentation rates)? (T or F)

References

Paillard, D., L. Labeyrie and P. Yiou, 1996), Macintosh program performs time-series analysis: Eos Trans. AGU, v. 77, p. 379.

Examples

 ## Not run: 
# Check to see if this is an interactive R session, for compliance with CRAN standards.
# YOU CAN SKIP THE FOLLOWING LINE IF YOU ARE USING AN INTERACTIVE SESSION.
if(interactive()) {

# generate example series with 3 precession terms and noise using function 'cycles'
# then convert from time to space using sedimentation rate that increases from 1 to 7 cm/ka
ex=sedRamp(cycles(start=1,end=400, dt=2,noisevar=.00005),srstart=0.01,srend=0.07)

# create astronomical target series
targ=cycles(start=1,end=400,dt=2)

## manually tune
tuned=linage(ex,targ)

## should you need to flip the direction of the astronomical target series, use function 'cb':
tuned=linage(ex,cb(targ[1]*-1,targ[2]))

}

 
## End(Not run)

astrochron documentation built on Sept. 30, 2024, 9:14 a.m.